Gaya APA
Peters, Alan. (2004).
Unlocking the census with GIS .
California:
ESRI Press.
Gaya Chicago
Peters, Alan.
Unlocking the census with GIS.
California:
ESRI Press,
2004.
Text.
Gaya MLA
Peters, Alan.
Unlocking the census with GIS.
California:
ESRI Press,
2004.
Text.
Gaya Turabian
Peters, Alan.
Unlocking the census with GIS.
California:
ESRI Press,
2004.
Print.