APA (7th ed.) Citation

Essen, A. v. d., & Delessert, E. (1980). Yok-Yok. Merrill.

Chicago Style (17th ed.) Citation

Essen, Anne van der, and Etienne Delessert. Yok-Yok. Columbus/Ohio, Toronto, Sydney: Merrill, 1980.

MLA (9th ed.) Citation

Essen, Anne van der, and Etienne Delessert. Yok-Yok. Merrill, 1980.