Ziegel, E., & Van Blarcom, C. C. (1972). Obstetric nursing. Macmillan.
芝加哥风格引文Ziegel, Erna, 与 Carolyn Conant Van Blarcom. Obstetric Nursing. New York: Macmillan, 1972.
MLA引文Ziegel, Erna, 与 Carolyn Conant Van Blarcom. Obstetric Nursing. Macmillan, 1972.
警告：这些引文格式不一定是100％准确.