APA

,, . (1950). Year book of the United Nations, 1948-49. New York: UNO.

Chicago

,, . 1950. Year book of the United Nations, 1948-49. New York: UNO.

Harvard

,, . (1950). Year book of the United Nations, 1948-49. New York: UNO.

MLA

,, . Year book of the United Nations, 1948-49. New York: UNO. 1950.