TY - BOOK AU - Gupta, R. G. TI - Audio and video engineering systems : principles, maintenance and troubleshooting SN - 0074621408 AV - 621.3893 GUP 1999 U1 - 621.3893 GUP 1999 PY - 1999/// PB - Tata McGraw-Hill KW - Communication Engineering ER -