Hyles, G. (1978). Economics and natural law: Incorporating a complete importing and exporting system (2nd ed.). International Barter Campaign.
Chicago-Zitierstil (17. Ausg.)Hyles, Graham. Economics and Natural Law: Incorporating a Complete Importing and Exporting System. 2nd ed. Hall, A.C.T.: International Barter Campaign, 1978.
MLA-Zitierstil (8. Ausg.)Hyles, Graham. Economics and Natural Law: Incorporating a Complete Importing and Exporting System. 2nd ed. International Barter Campaign, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.