Dyfyniad APA

Rife, W. (1992). Essentials of chemistry (Extended ed.). Saunders college.

Dyfyniad Arddull Chicago

Rife, William. Essentials of Chemistry. Extended ed. Philadelphia: Saunders college, 1992.

Dyfyniad MLA

Rife, William. Essentials of Chemistry. Extended ed. Saunders college, 1992.

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