APA استشهاد

Vardaman, J. M. (1978). Tree farm business management/2e (2nd ed.). John wiley & Sons.

استشهاد بنمط شيكاغو

Vardaman, James M. Tree Farm Business Management/2e. 2nd ed. New York: John wiley & Sons, 1978.

MLA استشهاد

Vardaman, James M. Tree Farm Business Management/2e. 2nd ed. John wiley & Sons, 1978.