Freyre, G. (1961). The Portuguese and the tropics. Executive C'ttee for the Commemoration of the Vth Centenary of the Death of Prince Henry the Navigator.
Chicago-referens (17:e uppl.)Freyre, Gilberto. The Portuguese and the Tropics. Lisbon: Executive C'ttee for the Commemoration of the Vth Centenary of the Death of Prince Henry the Navigator, 1961.
MLA-referens (8:e uppl.)Freyre, Gilberto. The Portuguese and the Tropics. Executive C'ttee for the Commemoration of the Vth Centenary of the Death of Prince Henry the Navigator, 1961.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.