APA (7th ed.) Citation

Bell, A. F. G. (1923). Luís de Camões. Oxford university press.

Chicago Style (17th ed.) Citation

Bell, Aubrey F. G. Luís De Camões. [London]: Oxford university press, 1923.

MLA (9th ed.) Citation

Bell, Aubrey F. G. Luís De Camões. Oxford university press, 1923.