Cita APA (7a ed.)

Curtis, W. E. (1888). The capitals of Spanish America. Harper & brothers.

Cita Chicago Style (17a ed.)

Curtis, William Eleroy. The Capitals of Spanish America. New York: Harper & brothers, 1888.

Cita MLA (9a ed.)

Curtis, William Eleroy. The Capitals of Spanish America. Harper & brothers, 1888.