APA (7th ed.) Citation

Saylor, R. B. (1949). An economic survey of Northumberland County, Pennsylvania. [s.n.].

Chicago Style (17th ed.) Citation

Saylor, Roger B. An Economic Survey of Northumberland County, Pennsylvania. State College, Pa.: [s.n.], 1949.

MLA (8th ed.) Citation

Saylor, Roger B. An Economic Survey of Northumberland County, Pennsylvania. [s.n.], 1949.

Warning: These citations may not always be 100% accurate.