Valls y Taberner, F. (1990). An introductory history of discovery and exploration. University of Málaga.
Chicago-čujuhus (17. p.)Valls y Taberner, Fernando. An Introductory History of Discovery and Exploration. Zaragoza: University of Málaga, 1990.
MLA-čujuhus (9. p.)Valls y Taberner, Fernando. An Introductory History of Discovery and Exploration. University of Málaga, 1990.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.