Παραπομπή APA

Gutin, G. e., & Punnen, A. P. (2002). Travelling salesman problem and its variations. Kluwer Academic.

Παραπομπή Chicago Style

Gutin, Gregory ed, και Abraham P. Punnen. Travelling Salesman Problem and Its Variations. Boston: Kluwer Academic, 2002.

Παραπομπή MLA

Gutin, Gregory ed, και Abraham P. Punnen. Travelling Salesman Problem and Its Variations. Kluwer Academic, 2002.