APA (7th ed.) Citation

Dionísio, S. A. (1973). Alto Douro ignoto. Lello.

Chicago Style (17th ed.) Citation

Dionísio, Sant' Anna. Alto Douro Ignoto. Lello, 1973.

MLA (8th ed.) Citation

Dionísio, Sant' Anna. Alto Douro Ignoto. Lello, 1973.

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