Dyfyniad APA

Hill, R., & Whittingham, C. (1955). Photosynthesis/2nd ed (2nd ed.). Methuen.

Dyfyniad Arddull Chicago

Hill, Robert, and C.P Whittingham. Photosynthesis/2nd Ed. 2nd ed. London: Methuen, 1955.

Dyfyniad MLA

Hill, Robert, and C.P Whittingham. Photosynthesis/2nd Ed. 2nd ed. Methuen, 1955.

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