Gaya APA
Davidson, J, W. et al (2005).
A Narrative History of The American Republic : Nation of Nations (fifth).
New York:
Mc Graw Hill C0..
Gaya MLA
Davidson, James, West. et al.
"A Narrative History of The American Republic : Nation of Nations".
fifth
New York:
Mc Graw Hill C0.,
2005.
Text.