Gaya APA
ArcGIS ® 9 geodatabase workbook. (2004).
:
ESRI.
Gaya Chicago
ArcGIS ® 9 geodatabase workbook.
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:
ESRI,
2004.
Electronic Resource.
Gaya MLA
ArcGIS ® 9 geodatabase workbook.
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:
ESRI,
2004.
Electronic Resource.
Gaya Turabian
ArcGIS ® 9 geodatabase workbook.
:
ESRI,
2004.
Electronic Resource.