Gaya APA

LaFeber, W., Polenberg, R. (2005). The American century: A history of the United State sice 1890s (5). New York: McGraw-Hill.

Gaya MLA

LaFeber, Walter., Polenberg, Richard. "The American century: A history of the United State sice 1890s". 5 New York: McGraw-Hill, 2005. Text.