Dyfyniad APA

Metcalfe, H. C., Williams, J. E., & Castka, J. F. (1974). Teacher's guide to Modern chemistry. Holt, Rinehart, and Winston.

Dyfyniad Arddull Chicago

Metcalfe, H. Clark, John E. Williams, and Joseph F. Castka. Teacher's Guide to Modern Chemistry. New York: Holt, Rinehart, and Winston, 1974.

Dyfyniad MLA

Metcalfe, H. Clark, et al. Teacher's Guide to Modern Chemistry. Holt, Rinehart, and Winston, 1974.

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