Citazione APA

Zhang, Y. (2011). Combinatorial problems in mathematical competitions. East china normal university.

Stile di citazione Chicago

Zhang, Yao. Combinatorial Problems in Mathematical Competitions. Shanghai: East china normal university, 2011.

Citazione MLA

Zhang, Yao. Combinatorial Problems in Mathematical Competitions. East china normal university, 2011.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.