TY  - BOOK
AU  - Walker,J.C.
TI  - Plant pathology
T2  - McGraw-Hill publications in the agricultural sciences
AV  - SB731 .W235 1969
U1  - 581.2 
PY  - 1969///
CY  - New York
PB  - McGraw-Hill
KW  - Plant diseases
N1  - Includes bibliographical references; Includes bibliographies
ER  -