Sundberg, A. I. (1965). A child is born: The drama of life before birth is unprecedented photographs ; a practical guide for the expectant mother. Dela Corte Press.
芝加哥风格引文Sundberg, Axel Ingleman. A Child Is Born: The Drama of Life Before Birth Is Unprecedented Photographs ; a Practical Guide for the Expectant Mother. New York: Dela Corte Press, 1965.
MLA引文Sundberg, Axel Ingleman. A Child Is Born: The Drama of Life Before Birth Is Unprecedented Photographs ; a Practical Guide for the Expectant Mother. Dela Corte Press, 1965.
警告：这些引文格式不一定是100％准确.