APA (7th ed.) Citation

Philadelphia. Junior Employment Service, School District of Philadelphia, Pa, & Pennsylvania State Employment Service. (1941). When Philadelphia youth leave school at 16 and 17 (1937-1939). [publisher not identified].

Chicago Style (17th ed.) Citation

Philadelphia. Junior Employment Service, Pa School District of Philadelphia, and Pennsylvania State Employment Service. When Philadelphia Youth Leave School at 16 and 17 (1937-1939). Philadelphia: [publisher not identified], 1941.

MLA (9th ed.) Citation

Philadelphia. Junior Employment Service, et al. When Philadelphia Youth Leave School at 16 and 17 (1937-1939). [publisher not identified], 1941.