Laing, J. E. (1982). Demographic evaluation of family planning programs. Australian National University.
Chicago-referens (17:e uppl.)Laing, John E. Demographic Evaluation of Family Planning Programs. Canberra: Australian National University, 1982.
MLA-referens (9:e uppl.)Laing, John E. Demographic Evaluation of Family Planning Programs. Australian National University, 1982.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.