Dyfyniad APA

American chemical. (1981). Reagent chemicals (6th ed.). American Chemical Society.

Dyfyniad Arddull Chicago

American chemical. Reagent Chemicals. 6th ed. Washington: American Chemical Society, 1981.

Dyfyniad MLA

American chemical. Reagent Chemicals. 6th ed. American Chemical Society, 1981.

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