Rogers, E. M. (1972). Field experiments on family planning incentives. Dept. of Communication.
Chicago-referens (17:e uppl.)Rogers, Everett M. Field Experiments on Family Planning Incentives. East Lansing, Mich: Dept. of Communication, 1972.
MLA-referens (9:e uppl.)Rogers, Everett M. Field Experiments on Family Planning Incentives. Dept. of Communication, 1972.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.