A UN peace force?
MLA
Frye, William R. A Un Peace Force?. Public Affairs Pamphlet. [1st ed. New York: Public Affairs Committee, 1957
APA, 7th edition
Frye, W. R. (1957). A UN peace force?. Public affairs pamphlet. [1st ed. New York: Public Affairs Committee
Chicago, 17th edition
Frye, William R. A UN peace force?. Public affairs pamphlet. [1st ed. New York: Public Affairs Committee, 1957