Yield losses caused by leaf roll of potatoes H. C. KirkpatrickF. M. Biodgett OriginalPaper Pages: 53 - 56
The influence of soil erosion on fertility losses and on potato yield O. R. Neal OriginalPaper Pages: 57 - 64
Report of the seed potato certification committee, potato association of America Marx KoehnkeHenry DarlingA. H. Eddins Announcement Pages: 65 - 66