APA (7th ed.) Citation

Bowles, P., & Lorenzo, G. (1991). Cabezas verdes, manos azules. Alfaguara.

Chicago Style (17th ed.) Citation

Bowles, Paul, and Guillermo Lorenzo. Cabezas Verdes, Manos Azules. Madrid: Alfaguara, 1991.

MLA (9th ed.) Citation

Bowles, Paul, and Guillermo Lorenzo. Cabezas Verdes, Manos Azules. Alfaguara, 1991.

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