1. Australian Department of Labour and Immigration. (1969). Survey of American Settlers. Canberra: Government Printer.
2. Australian Department of Labour and Immigration. (1971). Survey of U.S. settlers, phase two. Government Printer: Canberra.
3. Australian Department of Labour and Immigration. (1973). Australian Immigration, Consolidated Statistics. Canberra: Australian Government Publishing Service.
4. Australian Department of Labour and Immigration. (1983). Australian Immigration Consolidated Statistics. Canberra: Australian Government Publishing Service.
5. Babbie, E. (1986). The practice of social research (5th ed.). Belmont: Wadsworth Publishing Company.