Cita APA (7th ed.)
Pearson, C. J., & Ison, R. L. (1997). Agronomy of grassland systems (2nd ed.). Cambridge University Press.
Cita Chicago (17th ed.)
Pearson, C. J., i R. L. Ison. Agronomy of Grassland Systems. 2nd ed. Cambridge [England] ; New York, NY, USA: Cambridge University Press, 1997.
Cita MLA (9th ed.)
Pearson, C. J., i R. L. Ison. Agronomy of Grassland Systems. 2nd ed. Cambridge University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.