Dyfyniad APA

Sharp, D. W. A. (1983). The Penguin dictionary of chemistry. London: Penguin Books.

Dyfyniad Arddull Chicago

Sharp, D. W. A. The Penguin Dictionary of Chemistry. London: Penguin Books, 1983.

Dyfyniad MLA

Sharp, D. W. A. The Penguin Dictionary of Chemistry. London: Penguin Books, 1983.

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