Eastman, N. J. (1956). Williams Obstetrics. New York: Appleton-Century-Crofts.
シカゴスタイル引用形Eastman, Nicholson J. Williams Obstetrics. New York: Appleton-Century-Crofts, 1956.
MLA引用形式Eastman, Nicholson J. Williams Obstetrics. New York: Appleton-Century-Crofts, 1956.
警告: この引用は必ずしも正確ではありません.