Cita APA (7a ed.)

Pearson, C. J., & Ison, R. L. (1987). Agronomy of grassland systems. Cambridge University Press.

Cita Chicago Style (17a ed.)

Pearson, C. J., y R. L. Ison. Agronomy of Grassland Systems. Cambridge: Cambridge University Press, 1987.

Cita MLA (8a ed.)

Pearson, C. J., y R. L. Ison. Agronomy of Grassland Systems. Cambridge University Press, 1987.