00391nam a2200121Ia 4500008004100000040001600041041001200057082001600069100008800085245005100173260003500224300001000259230917s9999||||xx |||||||||||||| ||und||  e96877aMAIN  aEnglish  a681.423 I2P  aIndia, Ministry of Science & Technology, Dept of Scientific and Industrial Research 0aPlastic lenses: a preliminary industry profile  aNew DelhibGovt of Indiac1991  a92 p.