TY  - BOOK
AU  - Documentation Research and Tranning Centre
TI  - Theory and practice of abstracting developments in classification techniques of teaching documentation: DRTC Seminar. No
PY  - 1968///
CY  - Bangalore
UR  - http://krc.clri.res.in:80/cgi-bin/koha/opac-detail.pl?biblionumber=12538
ER  -