Introduction to Algorithms, 3rd Edition by Thomas Cormen, Charles Leiserson, Ronald Rivest, and Clifford Stein (MIT Press). http://bit.ly/XHeN4A

Algorithms in a Nutshell by George Heineman, Gary Pollice, and Stanley Selkow (O’Reilly). http://oreil.ly/16ROhGd

Introduction to the Design and Analysis Algorithms, 3rd Edition by Anany Levitin (Addison-Wesley Longman, Inc.). http://bit.ly/10ZXCbw