APA (7th ed.) Citation

pseud, C. (1988). Cristina aprende a voar. Porto Editora.

Chicago Style (17th ed.) Citation

pseud, Chica. Cristina Aprende a Voar. Porto Editora, 1988.

MLA (8th ed.) Citation

pseud, Chica. Cristina Aprende a Voar. Porto Editora, 1988.

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