Παραπομπή APA

Berge, C. (1989). Hyper graphs: Combinatorics of finite sets.

Παραπομπή Chicago Style

Berge, C. Hyper Graphs: Combinatorics of Finite Sets. North Holland, 1989.

Παραπομπή MLA

Berge, C. Hyper Graphs: Combinatorics of Finite Sets. 1989.