APA ציטוט

Northcott, R., & Richard Northcott. (2005). Numbers, Numbers Everywhere: Dolphin Readers. Oxford: Oxford University Press.

Trích dẫn kiểu Chicago

Northcott, Richard, và Richard Northcott. Numbers, Numbers Everywhere: Dolphin Readers. Oxford: Oxford University Press, 2005.

ציטוט MLA

Northcott, Richard, và Richard Northcott. Numbers, Numbers Everywhere: Dolphin Readers. Oxford: Oxford University Press, 2005.