Gaya APA
, ., Merk, F. (1968).
The monroe doctrine and American expansionism 1843-1849 .
New York:
New York: Alfred A. Knopf; 1968.
Gaya MLA
, ., Merk, Frederick.
"The monroe doctrine and American expansionism 1843-1849".
New York:
New York: Alfred A. Knopf; 1968,
1968.
Text.