Cita APA (7th ed.)

Holden, J., Peacock, J., & Williams, T. (1993). Genes, crops and the environment. Cambridge University Press.

Cita Chicago (17th ed.)

Holden, John, James Peacock, i Trevor Williams. Genes, Crops and the Environment. Cambridge: Cambridge University Press, 1993.

Cita MLA (9th ed.)

Holden, John, et al. Genes, Crops and the Environment. Cambridge University Press, 1993.