Bulatov, A., Jeavons, P., & Volkov, M. (2002). Finite semigroups imposing tractable constraints. World Scientific‚ Singapore.
Cita Chicago (17th ed.)Bulatov, A., P. Jeavons, i M. Volkov. Finite Semigroups Imposing Tractable Constraints. World Scientific‚ Singapore, 2002.
Cita MLA (9th ed.)Bulatov, A., et al. Finite Semigroups Imposing Tractable Constraints. World Scientific‚ Singapore, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.