Dickson, J.G. . Diseases of Field Crops / Textual Documents J.G. Dickson. - 1st ed / - Delhi : Biotech Books , 1997. - xii, 429p. : ill ; 22cm. . Index ISBN: 81-7622-000-0 Subjects--Index Terms: Botany Crops, Disease Diseases, Field Crops Dewey Class. No.: 581.6 / Di 547 Di