APA (7th ed.) Citation

Bécquer, G. A., & Colonna, M. Harfa.

Chicago Style (17th ed.) Citation

Bécquer, Gustavo Adolfo, and Michele Colonna. Harfa.

MLA (9th ed.) Citation

Bécquer, Gustavo Adolfo, and Michele Colonna. Harfa.

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