Dyfyniad APA

Oxtoby, D. W., Freeman, W. A., & Block, T. F. (2003). Chemistry (4th ed.). Thomson-Brooks/Cole.

Dyfyniad Arddull Chicago

Oxtoby, David W., Wade A. Freeman, and Toby F. Block. Chemistry. 4th ed. Australia ; Pacific Grove, CA, USA: Thomson-Brooks/Cole, 2003.

Dyfyniad MLA

Oxtoby, David W., et al. Chemistry. 4th ed. Thomson-Brooks/Cole, 2003.

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