Não informado. (1973). Journal of nurse-midwifery. American College of Nurse-Midwives.
Chicagoスタイル(17版)引用形式Não informado. Journal of Nurse-midwifery. New York: American College of Nurse-Midwives, 1973.
MLA(8版)引用形式Não informado. Journal of Nurse-midwifery. American College of Nurse-Midwives, 1973.
警告: この引用は必ずしも正確ではありません.