TY  - BOOK
AU  - Pettee, Julia
TI  - Subject headings : : the history and theory of the alphabetical subject approach to books / 
U1  - 025.33 
PY  - 1946///
CY  - New York : 
PB  - The H. W. Wilson
KW  - Subject heading
N1  - Includes index
ER  -