APA (7th ed.) Citation

Evers, N., & Caldwell, D. (1959). The chemistry of drugs (3rd ed., entirely revised and enlarged.). E. Benn.

Chicago Style (17th ed.) Citation

Evers, Norman, and Dennis Caldwell. The Chemistry of Drugs. 3rd ed., entirely revised and enlarged. London: E. Benn, 1959.

MLA (9th ed.) Citation

Evers, Norman, and Dennis Caldwell. The Chemistry of Drugs. 3rd ed., entirely revised and enlarged. E. Benn, 1959.