(2007). The traveling salesman problem and its variations / edited by Gregory Gutin, Abraham P. Punnen.
Lua i Stíl Chicago (17ú heag.)The Traveling Salesman Problem and Its Variations / Edited by Gregory Gutin, Abraham P. Punnen. 2007.
Lua MLA (9ú heag.)The Traveling Salesman Problem and Its Variations / Edited by Gregory Gutin, Abraham P. Punnen. 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.