Walker, J. C. Plant pathology. - 3d ed. - New York McGraw-Hill [1969] - xi, 819 p. illus. 23 cm. - McGraw-Hill publications in the agricultural sciences . Includes bibliographies. LCCN: 68022770 //r85 Subjects--Topical Terms: Plant diseases LC Class. No.: SB731 / .W235 1969 Dewey Class. No.: 581.2