Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Warning: These citations may not always be 100% accurate.