Gaya APA
Griffiths, Robert J.. (2009).
Annual Editions : Developing World, Nineteenth Edition (Ed. 19).
Amerika:
Mc Graw Hill.
Gaya Chicago
Griffiths, Robert J..
Annual Editions : Developing World, Nineteenth Edition.
Ed. 19
Amerika:
Mc Graw Hill,
2009.
Text.
Gaya MLA
Griffiths, Robert J..
Annual Editions : Developing World, Nineteenth Edition.
Ed. 19
Amerika:
Mc Graw Hill,
2009.
Text.
Gaya Turabian
Griffiths, Robert J..
Annual Editions : Developing World, Nineteenth Edition.
Ed. 19
Amerika:
Mc Graw Hill,
2009.
Print.