APA (7th ed.) Citation

Viana, A. M. C. (1960). A rosa sibilina. Verbo.

Chicago Style (17th ed.) Citation

Viana, António Manuel Couto. A Rosa Sibilina. Verbo, 1960.

MLA (8th ed.) Citation

Viana, António Manuel Couto. A Rosa Sibilina. Verbo, 1960.

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