Cita APA (7th ed.)

Valls y Taberner, F. (1990). An introductory history of discovery and exploration. University of Málaga.

Cita Chicago (17th ed.)

Valls y Taberner, Fernando. An Introductory History of Discovery and Exploration. Zaragoza: University of Málaga, 1990.

Cita MLA (9th ed.)

Valls y Taberner, Fernando. An Introductory History of Discovery and Exploration. University of Málaga, 1990.