Gaya APA
Hedges, Roy. (1999).
Grolier Business Library : Collecting a Debt .
Hongkong:
Grolier International, Inc.
Gaya Chicago
Hedges, Roy.
Grolier Business Library : Collecting a Debt.
Hongkong:
Grolier International, Inc,
1999.
.
Gaya MLA
Hedges, Roy.
Grolier Business Library : Collecting a Debt.
Hongkong:
Grolier International, Inc,
1999.
.
Gaya Turabian
Hedges, Roy.
Grolier Business Library : Collecting a Debt.
Hongkong:
Grolier International, Inc,
1999.
.