TY  - BOOK
AU  - Astle, Melvin J.
TI  - Chemistry of petrochemicals
PY  - 1956///
CY  - New York
PB  - Reinhold Publishing Corporation
UR  - http://krc.clri.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=831
ER  -