APA (7th ed.) Citation

Trapp, M. A. (1954). The story of the Trapp family singers (12th. impression.). J.B. Lippincott Company.

Chicago Style (17th ed.) Citation

Trapp, María Augusta. The Story of the Trapp Family Singers. 12th. impression. Philadelphia [etc.]: J.B. Lippincott Company, 1954.

MLA (9th ed.) Citation

Trapp, María Augusta. The Story of the Trapp Family Singers. 12th. impression. J.B. Lippincott Company, 1954.