APA (7th ed.) Citation

Gonçalves, A., & Abreu, M. d. (1929). Coimbra. Marques Abreu.

Chicago Style (17th ed.) Citation

Gonçalves, A., and Marques de Abreu. Coimbra. Pôrto: Marques Abreu, 1929.

MLA (9th ed.) Citation

Gonçalves, A., and Marques de Abreu. Coimbra. Marques Abreu, 1929.

Warning: These citations may not always be 100% accurate.