Heald, F. D. 1872-
Introduction to plant pathology / Frederick DeForest Heald. - 2nd ed. - New York : McGraw-Hill, 1943. - xii, 603 p. : ill. ; 23 cm. - McGraw-Hill publications in the agricultural sciences .
Includes bibliographical references and index.
agr43000203
Plant diseases.
SB731 / .H38 1943
581.2 / HEI
464 / H34 In Ed.2
Introduction to plant pathology / Frederick DeForest Heald. - 2nd ed. - New York : McGraw-Hill, 1943. - xii, 603 p. : ill. ; 23 cm. - McGraw-Hill publications in the agricultural sciences .
Includes bibliographical references and index.
agr43000203
Plant diseases.
SB731 / .H38 1943
581.2 / HEI
464 / H34 In Ed.2