TY  - BOOK
AU  - British Standards Institutions
ED  - British Standards Institutions
TI  - Universal decimal clssification: 622 mining and mineral dressing. 623 Military and naval engineering, ordnance, arms production. English Ed
U1  - 2:51M96, qJ5-;2 (2D) 
PY  - 1952///
KW  - LIBRARY SCIENCE
ER  -