Principles of plant infection :
Gäumann, Ernst Albert, 1893-1963.
Principles of plant infection : a text-book of general plant pathology for biologists, agriculturists, foresters and plant breeders / Ernst Gaumann - Authorized English ed. by William B. Brierley. - New York : Hafner Publishing Co., c1950. - xvi, 543 p. : ill. ; 25 cm.
Includes bibliographical references and index.
Plant diseases.
Entomology
581.2 / GAP
Principles of plant infection : a text-book of general plant pathology for biologists, agriculturists, foresters and plant breeders / Ernst Gaumann - Authorized English ed. by William B. Brierley. - New York : Hafner Publishing Co., c1950. - xvi, 543 p. : ill. ; 25 cm.
Includes bibliographical references and index.
Plant diseases.
Entomology
581.2 / GAP