Hecox, W. E. (1965). The use of import privileges as incentive to exporters in Pakistan. Pakistan Institute of Development Economics.
Chicago-referens (17:e uppl.)Hecox, Walter E. The Use of Import Privileges as Incentive to Exporters in Pakistan. [Karachi: Pakistan Institute of Development Economics, 1965.
MLA-referens (8:e uppl.)Hecox, Walter E. The Use of Import Privileges as Incentive to Exporters in Pakistan. Pakistan Institute of Development Economics, 1965.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.