Dyfyniad APA

Bettelheim, F. A. (2013). Introduction to organic and biochemistry. Pacific Grove, Calif: Brooks/Cole.

Dyfyniad Arddull Chicago

Bettelheim, Frederick A. Introduction to Organic and Biochemistry. Pacific Grove, Calif: Brooks/Cole, 2013.

Dyfyniad MLA

Bettelheim, Frederick A. Introduction to Organic and Biochemistry. Pacific Grove, Calif: Brooks/Cole, 2013.

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