Dyfyniad APA
Pearson, C. J., & Ison, R. L. (1997). Agronomy of grassland systems (2nd ed.). Cambridge University Press.
Dyfyniad Arddull Chicago
Pearson, C. J., and R. L. Ison. Agronomy of Grassland Systems. 2nd ed. Cambridge [England] ; New York, NY, USA: Cambridge University Press, 1997.
Dyfyniad MLA
Pearson, C. J., and R. L. Ison. Agronomy of Grassland Systems. 2nd ed. Cambridge University Press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.