Dyfyniad APA

albert Lehninger & David L Nelson. (1993). Principles of biochemistry (2.). C B S publoshers & distributors.

Dyfyniad Arddull Chicago

albert Lehninger and David L Nelson. Principles of Biochemistry. 2. C B S publoshers & distributors, 1993.

Dyfyniad MLA

albert Lehninger and David L Nelson. Principles of Biochemistry. 2. C B S publoshers & distributors, 1993.

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