APA (7th ed.) Citation

Ryder, M. L., & Stephenson, S. K. (1968). Wool growth. Academic Press.

Chicago Style (17th ed.) Citation

Ryder, M. L., and S. K. Stephenson. Wool Growth. London: Academic Press, 1968.

MLA (9th ed.) Citation

Ryder, M. L., and S. K. Stephenson. Wool Growth. Academic Press, 1968.