00521cam a22001337a 4500008004000000082001300040245012700053260008100180300000900261440005000270650001600320650001400336700003700350180718b1985   xxu||||| |||| 00| 0 eng d  aO91 En89  aEnvironmental evaluation of oil drilling and collection systems a follow-up/a pursuitcby Central Board for the Prevention  aDelhibCentral Board for the Prevention and Control of Water Pollutionc1985  a23p.  aProgramme Objective Series: Probes/33/1985-86  aEnvironment  aPollution  aCentral Board for the Prevention