APA

Stakman E. C., Harrar J. G., . (1957). Principles of plant pathologhy. New York: The Ronand Press.

Chicago

Stakman E C, Harrar J George, . 1957. Principles of plant pathologhy. New York: The Ronand Press.

Harvard

Stakman E. C., Harrar J. G., . (1957). Principles of plant pathologhy. New York: The Ronand Press.

MLA

Stakman E C, Harrar J George, . Principles of plant pathologhy. New York: The Ronand Press. 1957.