Hedges, R. (1997). Collecting a debt: How to enforce payment of money owed to you. Grolier.
Citazione stile Chigago Style (17a edizione)Hedges, Roy. Collecting a Debt: How to Enforce Payment of Money Owed to You. Wanchai, Hong Kong: Grolier, 1997.
Citatione MLA (9a ed.)Hedges, Roy. Collecting a Debt: How to Enforce Payment of Money Owed to You. Grolier, 1997.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.