Penggayaan APA
Helgren, David M., dkk.. (1985).
World Geography Today: Workbook .
New York:
Holt, Rinehart And Winston, Publishers.
Chicago Style
Helgren, David M., dkk..
World Geography Today: Workbook.
New York:
Holt, Rinehart And Winston, Publishers,
1985.
Text.
MLA Style
Helgren, David M., dkk..
World Geography Today: Workbook.
New York:
Holt, Rinehart And Winston, Publishers,
1985.
Text.
Turabian Style
Helgren, David M., dkk..
World Geography Today: Workbook.
New York:
Holt, Rinehart And Winston, Publishers,
1985.
Print.