Cita APA (7th ed.)
Davvaz, B. (2013). Polygroup theory and related systems. World scientific.
Cita Chicago (17th ed.)
Davvaz, Bijian. Polygroup Theory and Related Systems. Singapore ; Hackensack, NJ: World scientific, 2013.
Cita MLA (9th ed.)
Davvaz, Bijian. Polygroup Theory and Related Systems. World scientific, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.