APA
UNITED NATIONS D. S. B., UNITED NATIONS D. S. B., . (1961). Estimated world requirement of narcotic drugs in 1961. Geneva: UN.
Chicago
UNITED NATIONS DRUG SUPERVISORY BODY, UNITED NATIONS DRUG SUPERVISORY BODY, . 1961. Estimated world requirement of narcotic drugs in 1961. Geneva: UN.
Harvard
UNITED NATIONS D. S. B., UNITED NATIONS D. S. B., . (1961). Estimated world requirement of narcotic drugs in 1961. Geneva: UN.
MLA
UNITED NATIONS DRUG SUPERVISORY BODY, UNITED NATIONS DRUG SUPERVISORY BODY, . Estimated world requirement of narcotic drugs in 1961. Geneva: UN. 1961.
