Cita APA (7th ed.)

Choppin, G. R., & Johnsen, R. H. (1972). Introductory chemistry. Addison-Wesley Pub. Co.

Cita Chicago (17th ed.)

Choppin, Gregory R., i Russell H. Johnsen. Introductory Chemistry. Reading, Mass: Addison-Wesley Pub. Co, 1972.

Cita MLA (9th ed.)

Choppin, Gregory R., i Russell H. Johnsen. Introductory Chemistry. Addison-Wesley Pub. Co, 1972.