Encyclopedia of geographic information sources.
By: Jennifer Mossman, editor.
Contributors: Mossman, Jennifer.
Edition: 4th ed.
Publisher: Gale Research
Published: 1987
Place of publication: Detroit, Mich
Language: eng
Number of pages: 437
Subjects: Business Information services -- United States -- Directories.; Business -- Reference books -- Bibliography.; United States -- Information services -- Directories.; United States -- Reference books -- Bibliography.
Notes: Includes index.