APA (7th ed.) Citation

Heinzelmann, W., & Costa, F. C. d. (1980). Açores: Portugal. Caravela Publications.

Chicago Style (17th ed.) Citation

Heinzelmann, Willy, and Francisco Carreira da Costa. Açores: Portugal. Caravela Publications, 1980.

MLA (8th ed.) Citation

Heinzelmann, Willy, and Francisco Carreira da Costa. Açores: Portugal. Caravela Publications, 1980.

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