Mariano, P. B., & Williamson, N. E. (1976). Family planning in Bohol, 1975: Characteristics of users of four family planning methods. Bohol Province, MCH/FP Project.
Citazione stile Chigago Style (17a edizione)Mariano, Patrocinio Briones, e Nancy E. Williamson. Family Planning in Bohol, 1975: Characteristics of Users of Four Family Planning Methods. Tagbilaran City: Bohol Province, MCH/FP Project, 1976.
Citatione MLA (9a ed.)Mariano, Patrocinio Briones, e Nancy E. Williamson. Family Planning in Bohol, 1975: Characteristics of Users of Four Family Planning Methods. Bohol Province, MCH/FP Project, 1976.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.