APA aipamena

Weller, J. B., & Willetts, S. L. (1977). Farm wastes management. Crosby lockwood staples.

Chicago Style aipamena

Weller, J B., and S L. Willetts. Farm Wastes Management. London: Crosby lockwood staples, 1977.

MLA aipamena

Weller, J B., and S L. Willetts. Farm Wastes Management. Crosby lockwood staples, 1977.