TY  - BOOK
AU  - Dittman, Helen
AU  - Hardy, Jane.
AU  - Series.
AU  - Title.
TI  - Library of congress classification
SN  - 9748279693
AV  - 25.4 
CY  - USA
KW  - Classification, Library of Congress
N1  - Includes glossary, bibliographic reference and index
ER  -