Soberón. (2013). Problem-Solving Methods in Combinatorics (1.). Springer Basel.
Cita Chicago (17th ed.)Soberón. Problem-Solving Methods in Combinatorics. 1. Springer Basel, 2013.
Cita MLA (8th ed.)Soberón. Problem-Solving Methods in Combinatorics. 1. Springer Basel, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.