Citazione Stile APA (7a Edizione)

Hedges, R. (1997). Collecting a debt: How to enforce payment of money owed to you (Deluxe ed.). Grolier International.

Citazione stile Chigago Style (17a edizione)

Hedges, Roy. Collecting a Debt: How to Enforce Payment of Money Owed to You. Deluxe ed. Hongkong: Grolier International, 1997.

Citatione MLA (9a ed.)

Hedges, Roy. Collecting a Debt: How to Enforce Payment of Money Owed to You. Deluxe ed. Grolier International, 1997.