Gäumann, Ernst.
Principles of plant infection : a text-book of general plant pathology for biologists, agriculturists, foresters and plant breeders / Ernst Gäumann ; Authorized English edited by William B. Brierley. - London : Crosby Lockwood, c 1950. - xvi, 543 p. : ill. ; 25 cm.
includes index.
342 342
Plant injuries, diseases, pests.
632 / G23p
Principles of plant infection : a text-book of general plant pathology for biologists, agriculturists, foresters and plant breeders / Ernst Gäumann ; Authorized English edited by William B. Brierley. - London : Crosby Lockwood, c 1950. - xvi, 543 p. : ill. ; 25 cm.
includes index.
342 342
Plant injuries, diseases, pests.
632 / G23p