APA (7th ed.) Citation

Miller, E. W. (1964). An economic atlas of Pennsylvania. Commonwealth of Pennsylvania State Planning Board.

Chicago Style (17th ed.) Citation

Miller, E. Willard. An Economic Atlas of Pennsylvania. [Harrisburg?]: Commonwealth of Pennsylvania State Planning Board, 1964.

MLA (9th ed.) Citation

Miller, E. Willard. An Economic Atlas of Pennsylvania. Commonwealth of Pennsylvania State Planning Board, 1964.