United States. Division of Public Health Nursing. (1960). Nurses in public health: Number and educational preparation of nurses employed in public health work in the United States, Puerto Rico, and the Virgin Islands on January 1, 1960. U.S. Dept. of Health, Education, and Welfare, Public Health Service.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)United States. Division of Public Health Nursing. Nurses in Public Health: Number and Educational Preparation of Nurses Employed in Public Health Work in the United States, Puerto Rico, and the Virgin Islands on January 1, 1960. Washington: U.S. Dept. of Health, Education, and Welfare, Public Health Service, 1960.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)United States. Division of Public Health Nursing. Nurses in Public Health: Number and Educational Preparation of Nurses Employed in Public Health Work in the United States, Puerto Rico, and the Virgin Islands on January 1, 1960. U.S. Dept. of Health, Education, and Welfare, Public Health Service, 1960.