Não informado. (1973). Journal of nurse-midwifery. American College of Nurse-Midwives.
Citace podle Chicago (17th ed.)Não informado. Journal of Nurse-midwifery. New York: American College of Nurse-Midwives, 1973.
Citace podle MLA (8th ed.)Não informado. Journal of Nurse-midwifery. American College of Nurse-Midwives, 1973.
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