Stone, A. H. W. (1992). Listening to firms: How to use firm level surveys to assess constraints on private sectoe development. Country Economics Department, World Bank.
Chicago-referens (17:e uppl.)Stone, Andrew H. W. Listening to Firms: How to Use Firm Level Surveys to Assess Constraints on Private Sectoe Development. Washington, D.C: Country Economics Department, World Bank, 1992.
MLA-referens (9:e uppl.)Stone, Andrew H. W. Listening to Firms: How to Use Firm Level Surveys to Assess Constraints on Private Sectoe Development. Country Economics Department, World Bank, 1992.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.