APA aipamena

 Coburn, J. W. (2007).  Precalculus.  McGraw-Hill Higher Education.

Chicago Style aipamena

 Coburn, John W.  Precalculus.  McGraw-Hill Higher Education, 2007.

MLA aipamena

 Coburn, John W.  Precalculus.  McGraw-Hill Higher Education, 2007.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.