APA (7th ed.) Citation

(1991). El patito feo (1a. ed.). Grafalco.

Chicago Style (17th ed.) Citation

El Patito Feo. 1a. ed. Madrid: Grafalco, 1991.

MLA (9th ed.) Citation

El Patito Feo. 1a. ed. Grafalco, 1991.

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