APA (7th ed.) Citation

Ivens, G. W., Moody, K., & Egunjobi, J. K. (1978). West African weeds. Oxford University Press.

Chicago Style (17th ed.) Citation

Ivens, Giles William, Keith Moody, and J. K. Egunjobi. West African Weeds. Ibadan: Oxford University Press, 1978.

MLA (9th ed.) Citation

Ivens, Giles William, et al. West African Weeds. Oxford University Press, 1978.