00349nam a2200121Ia 4500 LDD LDD Current content [computer files] Physical,Chemical & Earth science .-Vol.1 No.1( Philadelphia Institute for Scientific Information 1998 1254 03-03-1998 23-03-1998 ddc CD 0 0 ddc 36534 0 0 148811 LDD LDD 2018-11-05 0 300 So13 CD001029 2018-11-05 2018-11-05 CD 148812 148812