Dyfyniad APA

Perrin, D. D., Armarego, W. L. F., & Perrin, D. R. (1980). Purification of laboratory chemicals (2nd ed.). Pergamon Press.

Dyfyniad Arddull Chicago

Perrin, D. D., W. L. F. Armarego, and Dawn R. Perrin. Purification of Laboratory Chemicals. 2nd ed. Oxford: Pergamon Press, 1980.

Dyfyniad MLA

Perrin, D. D., et al. Purification of Laboratory Chemicals. 2nd ed. Pergamon Press, 1980.

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