APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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

Warning: These citations may not always be 100% accurate.