TabsAbout BookCreator: Food and Agriculture Organization of the United NationsPublisher: Washington, D.C. : F.A.O., 1950.Description: vi, 81 p. : ill. Rights & ContributorRights: Copyright, public domain: McMaster University owns the rights to the archival copy of the digital image in TIFF format. Subjects & SeriesSubject: Agricultural productivity TechnicalIdentifier: S 494.5 .P75 F6Location: Russell LibraryLanguage: eng