Williams, M. K. (1972). Abortion: A collision of rights. National Catholic News Service.
Chicago Style (17. basım) AtıfWilliams, Mary Kay. Abortion: A Collision of Rights. Washington: National Catholic News Service, 1972.
MLA (8th ed.) AtıfWilliams, Mary Kay. Abortion: A Collision of Rights. National Catholic News Service, 1972.
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