APA-Zitierstil (7. Ausg.)
Villafranca, R. (1895). Costa Rica: The gem of american republics. The land, its resources and its people. Sackett and Wilhelms litho, co..
Chicago-Zitierstil (17. Ausg.)
Villafranca, Richard. Costa Rica: The Gem of American Republics. The Land, Its Resources and Its People. New York: Sackett and Wilhelms litho, co., 1895.
MLA-Zitierstil (9. Ausg.)
Villafranca, Richard. Costa Rica: The Gem of American Republics. The Land, Its Resources and Its People. Sackett and Wilhelms litho, co., 1895.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.