Os Lusiadas (the Lusiads):
Englished by Richard Francis Burton: (edited by his wife, Isabel Burton).
APA Citation
Camões, L. de., Burton, I., Burton, R. Francis. (1880). Os Lusiadas (the Lusiads). London: B. Quaritch.
MLA Citation
Camões, Luís de, 1524?-1580, Isabel Burton, and Richard Francis Burton. Os Lusiadas (the Lusiads). London: B. Quaritch, 1880.
Warning: These citations may not always be complete (especially for serials).