TY  - BOOK
AU  - Haykin David Judson Au.
TI  - Subject headings :  A practical guide
U1  - 2:55, J1;1-;3-;4 (2D) 
PY  - 1951///
CY  - Washington
PB  - U.S Government Printing Office USA   
KW  - LIBRARY SCIENCE
ER  -