Plant pathology /
Walker, J. C.
Plant pathology / John Charles Walker. - 3rd edition. - New York : McGraw-Hill, c1969. - xi, 819 pages : Illustrations ; 23 cm. - McGraw-Hill publications in the agricultural sciences .
Includes bibliographical references.
Includes bibliographies.
Plant diseases.
SB731 / .W235 1969
581.2
Plant pathology / John Charles Walker. - 3rd edition. - New York : McGraw-Hill, c1969. - xi, 819 pages : Illustrations ; 23 cm. - McGraw-Hill publications in the agricultural sciences .
Includes bibliographical references.
Includes bibliographies.
Plant diseases.
SB731 / .W235 1969
581.2