APA
The American Phytophatological Society. St. Paul M., . (1968). Directory of members. St. Paul, Minn: .
Chicago
The American Phytophatological Society. St. Paul Minn, . 1968. Directory of members. St. Paul, Minn: .
Harvard
The American Phytophatological Society. St. Paul M., . (1968). Directory of members. St. Paul, Minn: .
MLA
The American Phytophatological Society. St. Paul Minn, . Directory of members. St. Paul, Minn: . 1968.
