TY  - BOOK
AU  - Wasserman, Paul
AU  - Georgi, Charlotte 
AU  - Woy, James 
TI  - Encyclopedia of geographic information sources 
SN  - 0-8103-0374-4
PY  - 1978///
CY  - Michigan: 
PB  - Gale Research Company, 
KW  - Social science
KW  - Information source
ER  -