APA

U.S. National Center for Education Statistics, . (1973). Summary statistics of CPB-qualified public radio stations: fiscal year 1971. [Washington: U.S. Govt. Print. Off.

Chicago

U.S. National Center for Education Statistics, . 1973. Summary statistics of CPB-qualified public radio stations: fiscal year 1971. [Washington: U.S. Govt. Print. Off.

Harvard

U.S. National Center for Education Statistics, . (1973). Summary statistics of CPB-qualified public radio stations: fiscal year 1971. [Washington: U.S. Govt. Print. Off.

MLA

U.S. National Center for Education Statistics, . Summary statistics of CPB-qualified public radio stations: fiscal year 1971. [Washington: U.S. Govt. Print. Off. 1973.