APA (7th ed.) Citation

Boll, H., & Vennewitz, L. (1972). The clown. Calder and Boyars.

Chicago Style (17th ed.) Citation

Boll, Heinrich, and Leila Vennewitz. The Clown. London: Calder and Boyars, 1972.

MLA (9th ed.) Citation

Boll, Heinrich, and Leila Vennewitz. The Clown. Calder and Boyars, 1972.

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