APA (7th ed.) Citation

Martins, O. (1989). D. Afonso VI. Guimarães.

Chicago Style (17th ed.) Citation

Martins, Oliveira. D. Afonso VI. Guimarães, 1989.

MLA (8th ed.) Citation

Martins, Oliveira. D. Afonso VI. Guimarães, 1989.

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