Warm, warmer, superwarm.

MLA

Wyckmans, Anne, and Pia Dirks. Warm, Warmer, Superwarm. Brugge: Die Keure, 2008.

APA

Wyckmans, A., & Dirks, P. (2008). Warm, warmer, superwarm. Brugge: Die Keure.

Chicago

Wyckmans, Anne, and Pia Dirks. Warm, Warmer, Superwarm. Brugge: Die Keure, 2008.