APA Edition Citation

Spedding, C. (1981). Biological efficiency in agriculture. Academic Press.

Chicago Edition Citation

Spedding, C.R.W. Biological Efficiency in Agriculture. New York: Academic Press, 1981.

MLA Edition Citation

Spedding, C.R.W. Biological Efficiency in Agriculture. Academic Press, 1981.

Warning: These citations may not always be 100% accurate.