Christos, P., Kenneth, S.(1997).Combinatorial optimization: algorithms and complexity / Christos H. Papadimitriou, Kenneth Steiglitz .New Delhi:Prentice Hall of india.
Gaya MLA
Papadimitriou, Christos., Steiglitz, Kenneth."Combinatorial optimization: algorithms and complexity / Christos H. Papadimitriou, Kenneth Steiglitz".New Delhi:Prentice Hall of india,1997.Textbook.