00582nam a22001457a 4500 9788121902816 (pbk) 658.4034 GUP Gupta, Prem Kumar Operations research for engineering, computer science, commerce, economics and management Ram Nagar S. Chand & Company 2014 1498 p. : ill. ; 26 cm. Includes index. Operations research Research methods Linear programming Quality control Probability theory Trabsportation models Replacement model Netwrk analysis FMS BK 15797 15797