Style de citation APA (7e éd.)

Saylor, R. B. (1950). An economic survey of Venango County, Pennsylvania.

Style de citation Chicago (17e éd.)

Saylor, Roger B. An Economic Survey of Venango County, Pennsylvania. [State College, Pa. : s.n, 1950.

Style de citation MLA (8e éd.)

Saylor, Roger B. An Economic Survey of Venango County, Pennsylvania. 1950.