APA

Porter Cedric W., Holtrop H. R. & Waife R. S. (1975). Oral contraceptives: a guide for programs and clinics. Chestnut Hill, Mass: Pathfinder Fund.

Chicago

Porter Cedric W, Holtrop Hugh R and Waife Ronald S. 1975. Oral contraceptives: a guide for programs and clinics. Chestnut Hill, Mass: Pathfinder Fund.

Harvard

Porter Cedric W., Holtrop H. R. and Waife R. S. (1975). Oral contraceptives: a guide for programs and clinics. Chestnut Hill, Mass: Pathfinder Fund.

MLA

Porter Cedric W, Holtrop Hugh R and Waife Ronald S. Oral contraceptives: a guide for programs and clinics. Chestnut Hill, Mass: Pathfinder Fund. 1975.