Gaya APA
Brinkley, A. (2013).
The unfinished nation: a concise history of the American people (7th edition.).
New York:
McGraw-Hill.
Gaya MLA
Brinkley, Alan..
"The unfinished nation: a concise history of the American people".
7th edition.
New York:
McGraw-Hill,
2013.
Text.