Notes waulsortoises.

MLA

Wayens, Albert, et al. Notes Waulsortoises. Waulsort: Ed. du Pairy, 1981.

APA

Wayens, A., Degroote, G., Dauphin, E., Adam, C., & Coleau, M. (1981). Notes waulsortoises. Waulsort: Ed. du Pairy.

Chicago

Degroote, Gilbert., Emile Dauphin, Carlo Adam, and Michel Coleau. Notes Waulsortoises. Compiled by Albert Wayens. Waulsort: Ed. du Pairy, 1981.