00435nam a2200121Ia 4500008004100000040001600041041001200057082001500069100006500084245011800149260003500267300001100302230917s9999||||xx |||||||||||||| ||und||  e99171aMAIN  aEnglish  a662.93 I2T  aIndia, Ministry of Science and Technology, Department of sci 0aTechnology in indian carbon black industry: a study prepared under the national register of foreign collaboration  aNew DelhibGovt of Indiac1990  a141 p.