APA (7th ed.) Zitazioa

Backley, P. (2011). An introduction to element theory. Edinburgh University Press.

Chicago Style (17th ed.) Zitazioa

Backley, Phillip. An Introduction to Element Theory. Edinburgh: Edinburgh University Press, 2011.

MLA (9th ed.) Zitazioa

Backley, Phillip. An Introduction to Element Theory. Edinburgh University Press, 2011.