TY  - BOOK
AU  - United States. Library of Congress (Processing Dept.) Subject Cataloguing Division
ED  - United States. Library of Congress (Processing Dept.) Subject Cataloguing Division
TI  - Classification Class Q:  Science
U1  - 2:51 (A), L3 (2) 
PY  - 1973///
CY  - Washington
PB  - Library of congress     
KW  - LIBRARY SCIENCE
ER  -