APA (7th ed.) Citation

Gribbin, J. (1989). <O >buraco no céu. Europa-América.

Chicago Style (17th ed.) Citation

Gribbin, John. <O >buraco No Céu. Europa-América, 1989.

MLA (8th ed.) Citation

Gribbin, John. <O >buraco No Céu. Europa-América, 1989.

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