Dyfyniad APA

Cartmell, E., & Fowles, G. W. A. (1977). Valency and molecular structure. Butterworths.

Dyfyniad Arddull Chicago

Cartmell, E., and G W A. Fowles. Valency and Molecular Structure. London: Butterworths, 1977.

Dyfyniad MLA

Cartmell, E., and G W A. Fowles. Valency and Molecular Structure. Butterworths, 1977.

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