Gaya APA

Leonard, K, J., Fry, W, E. (1986). Plant Disease Epidemiology Population Dynamics and Management Volume 1 (I). New York: Macmillan Publishing.

Gaya MLA

Leonard, Kurt, J.., Fry, William, E.. "Plant Disease Epidemiology Population Dynamics and Management Volume 1". I New York: Macmillan Publishing, 1986. Text.