Plant pathology.
Walker, J. C. 1893-
Plant pathology. - 3rd ed. - New York, McGraw-Hill 1957. - xi , 818 p. illus. 24 cm. - McGraw-Hill publications in the agricultural sciences . - McGraw-Hill publications in the agricultural sciences. .
Includes index.
Includes bibliographies.
56-10335/L
Plant diseases
SB621 / .W34 1957
Plant pathology. - 3rd ed. - New York, McGraw-Hill 1957. - xi , 818 p. illus. 24 cm. - McGraw-Hill publications in the agricultural sciences . - McGraw-Hill publications in the agricultural sciences. .
Includes index.
Includes bibliographies.
56-10335/L
Plant diseases
SB621 / .W34 1957