APA

United States, . (1962). Public recreation use: civil works projects. [Washington]: Corps of Engineers, Dept. of the Army.

Chicago

United States, . 1962. Public recreation use: civil works projects. [Washington]: Corps of Engineers, Dept. of the Army.

Harvard

United States, . (1962). Public recreation use: civil works projects. [Washington]: Corps of Engineers, Dept. of the Army.

MLA

United States, . Public recreation use: civil works projects. [Washington]: Corps of Engineers, Dept. of the Army. 1962.