Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.