Cita APA

Brooke, R., & Rebecca Brooke. (2005). Circles and Squares: Dolphin reader Level 4. Oxford: Oxford University Press.

Citación estilo Chicago

Brooke, Rebecca, y Rebecca Brooke. Circles and Squares: Dolphin Reader Level 4. Oxford: Oxford University Press, 2005.

Cita MLA

Brooke, Rebecca, y Rebecca Brooke. Circles and Squares: Dolphin Reader Level 4. Oxford: Oxford University Press, 2005.