TY - BOOK AU - SINGH P P, RAO R S, CHAWATHE VIDYA TI - AN INTRODUCTION TO SYNTHETIC DRUGS AND DYES SN - 8170402530 U1 - 615.19 SIN PY - 1990/// CY - BOMBAY PB - HIMALAYA KW - AN INTRODUCTION TO SYNTHETIC DRUGS AND DYES N1 - no date ER -