Concentrations of heavy metals and polycyclic aromatic hydrocarbons in river sediments: geochemical background, man's influence and environmental impact Förstner U.Müller G. OriginalPaper Pages: 417 - 432
Potential use of freshwater molluscs for monitoring river pollution Zadory L.Müller P. OriginalPaper Pages: 433 - 445
The Great Lakes: An Example of International Cooperation to Control Lake Pollution Swain W. R. OriginalPaper Pages: 447 - 456
IGU Working group on geography of health circular letter no 3 Y. Verhasselt The International Geographical Union Reports Pages: 513 - 515
IGU Groupe de travail geographie de la sante lettre circulaire no 3 Y. Verhasselt The International Geographical Union Reports Pages: 514 - 514
IGU Working group on applied aspects of Geography Marcel Belanger The International Geographical Union Reports Pages: 515 - 515