TY  - BOOK
AU  - 
AU  - Diercks,Gregory
TI  - Research aide selected sources of information
U1  - US  060.58 23rd ed.
PY  - 1978///
CY  - Washington, D.C.
PB  - U.S. Government Printing Office
KW  - Technology
KW  - Information services
KW  - Science
ER  -