APA (7th ed.) Citation

Porterfield, W. W. (1972). Concepts of chemistry. W. W. Norton.

Chicago Style (17th ed.) Citation

Porterfield, William W. Concepts of Chemistry. Nueva York: W. W. Norton, 1972.

MLA (9th ed.) Citation

Porterfield, William W. Concepts of Chemistry. W. W. Norton, 1972.