Gaya APA
Davis, Bruce E.. (2001).
GIS : a visual approach (text).
Singapore:
Onword Press.
Gaya Chicago
Davis, Bruce E..
GIS : a visual approach.
text
Singapore:
Onword Press,
2001.
Tesis.
Gaya MLA
Davis, Bruce E..
GIS : a visual approach.
text
Singapore:
Onword Press,
2001.
Tesis.
Gaya Turabian
Davis, Bruce E..
GIS : a visual approach.
text
Singapore:
Onword Press,
2001.
Tesis.