TY  - BOOK
AU  - Dewey,melvil .
AU  - john p . comaromi
AU  - julianne beall 
AU  - winton e . matthews, jr 
AU  - gregory R. new 
TI  - dewey decimal classification and relative index: Edition 20 
U1  - 025.34 21
PY  - 1989///
CY  - Albany, new york
PB  - Forest press
KW  - qrmak
N1  - . 240-220 ببليوجرافيا: صفحات
UR  - http://195.246.42.239/public/bks/B00-00647.pdf
ER  -