Dyfyniad APA

Denial, M. J., & Davies,L . Locke,A..W. Reay,M.E. (1981). Investigating chemistry/2nd ed (2nd ed.). Heinemann.

Dyfyniad Arddull Chicago

Denial, M. J., and Davies,L . Locke,A..W. Reay,M.E. Investigating Chemistry/2nd Ed. 2nd ed. Oxford: Heinemann, 1981.

Dyfyniad MLA

Denial, M. J., and Davies,L . Locke,A..W. Reay,M.E. Investigating Chemistry/2nd Ed. 2nd ed. Heinemann, 1981.

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