00460nam a22001817a 4500 BD-DhUL 20140820104918.0 140820s1935 ii a|||| |||| 000 0 eng d BD-DhUL BD-DhUL 500 ARN Dutta, Arun Kumar. Natural science Arun Kumar Dutta 2nd ed. Calcutta : Guota, 1935. vi, 127 p. : ill. ; 19 cm. Science ddc BK 4282 4282 0 0 ddc 0 500_000000000000000_ARN 0 NFIC 7651 DUSL DUSL GEN 2014-08-20 500 ARN 83903 2014-08-20 2014-08-20 BK