TY - BOOK AU - KOERN, HERMAN AU - BISESI, MICHAEL TI - HANDBOOK OF ENVIORMENTAL HEALTH AND SAFTY PRINCIPLES AND PRACTICE VOL - 1 SN - 8172247680 U1 - 628/KOE/BIS PY - 2005/// CY - MUMBAI. PB - JAICO PUBLISHING HOUSE. MUMBAI. ER -