Dyfyniad APA

Holmes, W. (1980). Grass: Its production and utilization (2nd ed.). Blackwell Scientific Publications.

Dyfyniad Arddull Chicago

Holmes, W. Grass: Its Production and Utilization. 2nd ed. Oxford: Blackwell Scientific Publications, 1980.

Dyfyniad MLA

Holmes, W. Grass: Its Production and Utilization. 2nd ed. Blackwell Scientific Publications, 1980.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.