APA引文

Lockhart, J. A. R., & Wiseman, A. J. L. (1989). Introduction to crop husbandry: Including grass land (6.). Pergamon Press.

Chicago Edition Citation

Lockhart, J A R., and A J L. Wiseman. Introduction to Crop Husbandry: Including Grass Land. 6. Oxford: Pergamon Press, 1989.

MLA引文

Lockhart, J A R., and A J L. Wiseman. Introduction to Crop Husbandry: Including Grass Land. 6. Pergamon Press, 1989.