APA (7th ed.) Zitazioa

Peter, H. (1998). Workbook on contigration (1st edition.). Oxford and IBH.

Chicago Style (17th ed.) Zitazioa

Peter, Hansen. Workbook on Contigration. 1st edition. New York: Oxford and IBH, 1998.

MLA (9th ed.) Zitazioa

Peter, Hansen. Workbook on Contigration. 1st edition. Oxford and IBH, 1998.