Dyfyniad APA

(1983). Principles of biochemistry: General aspects. New York: McGraw-Hill.

Dyfyniad Arddull Chicago

Principles of Biochemistry: General Aspects. New York: McGraw-Hill, 1983.

Dyfyniad MLA

Principles of Biochemistry: General Aspects. New York: McGraw-Hill, 1983.

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