Gaya APA
Green, DR. (1993).
Geographic information 1994: the source book for GIS .
London:
Taylor & Francis.
Gaya Chicago
Green, DR.
Geographic information 1994: the source book for GIS.
London:
Taylor & Francis,
1993.
Text.
Gaya MLA
Green, DR.
Geographic information 1994: the source book for GIS.
London:
Taylor & Francis,
1993.
Text.
Gaya Turabian
Green, DR.
Geographic information 1994: the source book for GIS.
London:
Taylor & Francis,
1993.
Print.