Dyfyniad APA

Herron, J. D., Kukla, D. A., DiSpezio, M. A., Schrader, C. L., & Erickson, J. L. (1987). Heath chemistry (Teacher's annotated edition.). D.C. Heath.

Dyfyniad Arddull Chicago

Herron, J. Dudley, David A. Kukla, Michael A. DiSpezio, Clifford L. Schrader, and Julia Lee Erickson. Heath Chemistry. Teacher's annotated edition. Lexington, Massachusetts: D.C. Heath, 1987.

Dyfyniad MLA

Herron, J. Dudley, et al. Heath Chemistry. Teacher's annotated edition. D.C. Heath, 1987.

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