Cita APA (7a ed.)

(1988). The Penguin dictionary of chemistry (Repr.). Penguin Books.

Cita Chicago Style (17a ed.)

The Penguin Dictionary of Chemistry. Repr. Harmondsworth [etc.]: Penguin Books, 1988.

Cita MLA (9a ed.)

The Penguin Dictionary of Chemistry. Repr. Penguin Books, 1988.