APA
Dept. of public information (New York U.S.A.), Dept. of public information (New York U.S.A.), . (1978). Yearbook of the united nations 1978. : .
Chicago
Dept. of public information (New York U.S.A.), Dept. of public information (New York U.S.A.), . 1978. Yearbook of the united nations 1978. : .
Harvard
Dept. of public information (New York U.S.A.), Dept. of public information (New York U.S.A.), . (1978). Yearbook of the united nations 1978. : .
MLA
Dept. of public information (New York U.S.A.), Dept. of public information (New York U.S.A.), . Yearbook of the united nations 1978. : . 1978.
