Gaya APA

Merk, F., Swanson, C, P. (1968). **The monroe doctrine and american expansionism 1843-1849 . New York: New York: Alfred A. Knopf; 1968.

Gaya MLA

Merk, Frederick., Swanson, Carl, P.. "**The monroe doctrine and american expansionism 1843-1849". New York: New York: Alfred A. Knopf; 1968, 1968. Text.