Knutson, A. L. (1967). When does a human life begin? Viewpoints of public health professionals.
استشهاد بنمط شيكاغوKnutson, A L. When Does a Human Life Begin? Viewpoints of Public Health Professionals. 1967.
MLA استشهادKnutson, A L. When Does a Human Life Begin? Viewpoints of Public Health Professionals. 1967.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.