APA (7th ed.) Citation

(2009). 21 relatos contra el acoso escolar (2a. ed.). SM.

Chicago Style (17th ed.) Citation

21 Relatos Contra El Acoso Escolar. 2a. ed. Madrid: SM, 2009.

MLA (9th ed.) Citation

21 Relatos Contra El Acoso Escolar. 2a. ed. SM, 2009.

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