Cita APA (7a ed.)

Heald, F. D. (1937). Introduction to plant pathology. McGraw-Hill.

Cita Chicago Style (17a ed.)

Heald, Frederick Deforest. Introduction to Plant Pathology. New York: McGraw-Hill, 1937.

Cita MLA (8a ed.)

Heald, Frederick Deforest. Introduction to Plant Pathology. McGraw-Hill, 1937.