Παραπομπή APA

Wheeler, B. E. J. (1969). Introduction to plant diseases. John wiley.

Παραπομπή Chicago Style

Wheeler, B. E. J. Introduction to Plant Diseases. London: John wiley, 1969.

Παραπομπή MLA

Wheeler, B. E. J. Introduction to Plant Diseases. John wiley, 1969.