TY  - BOOK
AU  - Christ, John M.
TI  - Concepts and subject headings: their relation of information retrieval in librar
SN  - 0-8108-0491-3
U1  - 025.493 CHR-; 
PY  - 1972///
CY  - New Jersey
PB  - Scarecrow Press
KW  - Library science
KW  - Social sciences
KW  - Subject headings - Study and teaching
KW  - Social sciences - Terminology
N1  - Includes bibliography
ER  -