APA-referens (7:e uppl.)

Bulatov, A., Jeavons, P., & Krokhin, A. (2005). Classifying the complexity of constraints using finite algebras.

Chicago-referens (17:e uppl.)

Bulatov, A., P. Jeavons, och A. Krokhin. Classifying the Complexity of Constraints Using Finite Algebras. 2005.

MLA-referens (9:e uppl.)

Bulatov, A., et al. Classifying the Complexity of Constraints Using Finite Algebras. 2005.