APA (7th ed.) Citation

Hepler, S. E. (1975). Bilingual drug abuse communication. [publisher not identified].

Chicago Style (17th ed.) Citation

Hepler, Susanne Elster. Bilingual Drug Abuse Communication. [Place of publication not identified]: [publisher not identified], 1975.

MLA (9th ed.) Citation

Hepler, Susanne Elster. Bilingual Drug Abuse Communication. [publisher not identified], 1975.