Ware, H. (1977). Languange problems in demographic field work in Africa: The case of the Cameroon fertility survey. International Statistical Institute.
Citazione stile Chigago Style (17a edizione)Ware, Helen. Languange Problems in Demographic Field Work in Africa: The Case of the Cameroon Fertility Survey. The Hague: International Statistical Institute, 1977.
Citatione MLA (9a ed.)Ware, Helen. Languange Problems in Demographic Field Work in Africa: The Case of the Cameroon Fertility Survey. International Statistical Institute, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.