Gaya APA

Lockhart, J., Wiseman, A. (1983). Introduction to crop husbandry (Ed. 5 th). New York: Pergamon Press.

Gaya MLA

Lockhart, J.A.R.., Wiseman, A.JL.. "Introduction to crop husbandry". Ed. 5 th New York: Pergamon Press, 1983. Text.