Spahr, B. L., & Rossiter, H. S. (1952). Philadelphia, its historic position as a publishing center: An address. Philadelphia, Pa.: [s.n.].
Chicago Style CitationSpahr, Boyd Lee, and Henry S. Rossiter. Philadelphia, Its Historic Position As a Publishing Center: An Address. Philadelphia, Pa.: [s.n.], 1952.
MLA CitationSpahr, Boyd Lee, and Henry S. Rossiter. Philadelphia, Its Historic Position As a Publishing Center: An Address. Philadelphia, Pa.: [s.n.], 1952.
Warning: These citations may not always be 100% accurate.