APA aipamena

 Schiller, B. R. (2008).  The economy today.  McGraw-Hill Irwin.

Chicago Style aipamena

 Schiller, Bradley R.  The Economy Today.  McGraw-Hill Irwin, 2008.

MLA aipamena

 Schiller, Bradley R.  The Economy Today.  McGraw-Hill Irwin, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.