principles and practice Chaturvedi,B.K. creator text Delhi Global Academic Publishers and Distributors 2017 2nd ed monographic x,1121p. 23cm(pbk) by B.K. Chaturvedi [and] S.K. Mittal Includes bibliographical reference and index 302.230954 9789381695074 1718EN-30 ENG-121718 B-689227-231 Global Academic dpl DBBAD/PUB 20180613170024.0