TY  - BOOK
ED  - Library of Congress.
TI  - Library of Congress subject headings
U1  - 025.3 
PY  - 1980///
CY  - Washington
PB  - Library of Congress
KW  - Subject headings
N1  - Incorporates material through 1978; Kept up to date by cumulative supplements issued quarterly, with annual cumulations, 1979-
ER  -