Gaya APA
1000 Think Space. (2000).
Harmoni:
Prentice Hall.
Gaya Chicago
1000 Think Space.
.
Harmoni:
Prentice Hall,
2000.
Text.
Gaya MLA
1000 Think Space.
.
Harmoni:
Prentice Hall,
2000.
Text.
Gaya Turabian
1000 Think Space.
Harmoni:
Prentice Hall,
2000.
Print.