APA (7th ed.) Citation

Environmental Systems Research Institute (Redlands, Calif.). (1997). Understanding GIS: The ARC/INFO method : self-study workbook : version 7.1 for UNIX and Windows NT (4th ed.). GeoInformation International.

Chicago Style (17th ed.) Citation

Environmental Systems Research Institute (Redlands, Calif.). Understanding GIS: The ARC/INFO Method : Self-study Workbook : Version 7.1 for UNIX and Windows NT. 4th ed. Cambridge, U.K.: GeoInformation International, 1997.

MLA (9th ed.) Citation

Environmental Systems Research Institute (Redlands, Calif.). Understanding GIS: The ARC/INFO Method : Self-study Workbook : Version 7.1 for UNIX and Windows NT. 4th ed. GeoInformation International, 1997.

Warning: These citations may not always be 100% accurate.