Dyfyniad APA

Van Norman, R. (1971). Experimental biology (2nd ed.). Prentice-Hall of India.

Dyfyniad Arddull Chicago

Van Norman, Richard. Experimental Biology. 2nd ed. New Jersey: Prentice-Hall of India, 1971.

Dyfyniad MLA

Van Norman, Richard. Experimental Biology. 2nd ed. Prentice-Hall of India, 1971.

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