APA (7th ed.) Citation

Schwartz, A., & Rounds, G. (1972). A twister of twists, a tangler of tongues: Tongue twisters. Lippincott.

Chicago Style (17th ed.) Citation

Schwartz, Alvin, and Glen Rounds. A Twister of Twists, a Tangler of Tongues: Tongue Twisters. Philadelphia: Lippincott, 1972.

MLA (9th ed.) Citation

Schwartz, Alvin, and Glen Rounds. A Twister of Twists, a Tangler of Tongues: Tongue Twisters. Lippincott, 1972.