Cita APA (7th ed.)

Gregg, D. C. (1958). Principles of chemistry. Allyn and Bacon.

Cita Chicago (17th ed.)

Gregg, Donald Crowther. Principles of Chemistry. Boston: Allyn and Bacon, 1958.

Cita MLA (9th ed.)

Gregg, Donald Crowther. Principles of Chemistry. Allyn and Bacon, 1958.