APA
UNITED NATIONS D. S. (. )., UNITED NATIONS D. S. (. )., . (1956). Estimated world requirements of narcotic drugs in 1956. Geneva: UN.
Chicago
UNITED NATIONS DRUGS SUPERVISORY (Body ), UNITED NATIONS DRUGS SUPERVISORY (Body ), . 1956. Estimated world requirements of narcotic drugs in 1956. Geneva: UN.
Harvard
UNITED NATIONS D. S. (. )., UNITED NATIONS D. S. (. )., . (1956). Estimated world requirements of narcotic drugs in 1956. Geneva: UN.
MLA
UNITED NATIONS DRUGS SUPERVISORY (Body ), UNITED NATIONS DRUGS SUPERVISORY (Body ), . Estimated world requirements of narcotic drugs in 1956. Geneva: UN. 1956.
