Garg, Vijay K & Wilkes, Joseph E. Principles and Applications Of GSM - 1st Ed - Noida Pearson India Education Service Pvt. Ltd. 2006 - xxiii, 481 p. 20 cm. Text in English ISBN: 9788177588798 Subjects--Facted Index Terms: ELN Dewey Class. No.: 621.3814 / GAR