Gaya APA
Dent, B, D.
(2007).
Cartography thematic map design
(
5th ed.)
.
Boston, Massachusetts:
WBC/McGraw-Hill.
Gaya MLA
Dent, Borden, D..
"Cartography thematic map design".
5th ed.
Boston, Massachusetts:
WBC/McGraw-Hill,
2007.
Text.