Cita APA (7a ed.)
Bell, O. The Illustrated Library of the World and Its Peoples: Spain, Portugal, Andorra, Gibraltar. Greystone.
Cita estilo Chicago (17a ed.)
Bell, Oliver. The Illustrated Library of the World and Its Peoples: Spain, Portugal, Andorra, Gibraltar. Nueva York, EUA: Greystone.
Cita MLA (9a ed.)
Bell, Oliver. The Illustrated Library of the World and Its Peoples: Spain, Portugal, Andorra, Gibraltar. Greystone.
Precaución: Estas citas no son 100% exactas.