Appasamy, P. 1993. Role of non-timber forest products in a subsistence economy: the case of a joint forestry project in India. Economic Botany 47:258–267.
Bawa, K. S.
1992. The riches of tropical forests: non-timber products. Trends in Ecology and Evolution7
Browder, J. O. 1992. Social and economic constraints on the development of market-oriented extractive reserves in Amazon rain forests. Pages 33–42in
and S. Schwartzman, eds., Non-timber products from tropical forests: evaluation of a conservation and development strategy. Advances in Economic Botany 9. The New York Botanical Garden, Bronx, NY.
Chopra, K. 1993. The value of non-timber forest products: an estimate from India. Economic Botany47:251–257.
de Beer, J. H., and M. J. McDermott. 1989. Economic value of non-timber forest products in southeast Asia. Council for the International Union of the Conservation of Nature, The Netherlands.
Godoy, R. 1993. The effect of income on the extraction of non-timber forest products among the Sumu Indians of Nicaragua: preliminary findings. Manuscript. Harvard Institute for International Development, Cambridge, MA.
Godoy, R., R. Lubowski, and A. Markandya. 1993. A method for the economic valuation of non-timber tropical forest products. Economic Botany 47: 220–233.
Gunatilake, H. M., D. M. A. H. Senaratne, and P. Abeygunawardena. 1993. Role of non-timber forest products in the economy of the peripheral communities of Knuckles National Wilderness Area of Sri Lanka: a farming systems approach. Economic Botany47:275–281.
Gunatilleke, I. A. U. N, C. V. S. Gunatilleke, and P. Abeygunawardena. 1993. Interdisciplinary research towards management of non-timber forest resources in lowland rain forests of Sri Lanka. Economic Botany47:282–290.
Hall, P., and K. Bawa. 1993. Methods to assess the impact of extraction of non-timber tropical forest products on plant populations. Economic Botany47:234–247.
Homma, A. K. O. 1992. The dynamics of extraction in Amazonia: a historical perspective. Pages 23–31in D. C. Nepstad and S. Schwartzman, eds., Non-timber products from tropical forests: evaluation of a conservation and development strategy. Advances in Economic Botany 9. The New York Botanical Garden, Bronx, NY.
Martin, P. S. 1984. Prehistoric overkill: the global model. Pages 354–403in P. S. Martin and R. G. Klein, eds., Quaternary extinctions. University of Arizona Press, Tucson.
Panayotou, T., and P. Ashton. 1992. Not by timber alone: the case for multiple use management of tropical forests. Island Press, Covelo, CA.
Peters, C. 1992. The ecology and economics of oligarchic forests. Pages 15–22in D. C. Nepstad and S. Schwartzman, eds., Non-timber products from tropical forests: evaluation of a conservation and development strategy. Advances in Economic Botany 9. The New York Botanical Garden, Bronx, NY.
Peters, C, A. H. Gentry, and R. O. Mendelsohn
. 1989. Valuation of an Amazonian rain forest. Nature339
Phillips, O., and A. H. Gentry. 1993. The useful plants of Tambopata, Peru. I. Statistical hypothesis tests with a new quantitative technique. Economic Botany47:15–32.
Plotkin, M., and L. Famolare, eds. 1992. Sustainable harvest and marketing of rain forest products. Island Press, Washington, DC.