TY - BOOK TI - Williams Obstetrics 17th ed. AU - Williams, J. Whitridge (John Whitridge) , 1866-1931. AU - Pritchard, Jack A. 1921- AU - MacDonald, Paul C. 1930- AU - Gant,Norman F. SN - 0838597335 PB - Appleton-Century-Crofts PP - New York : Appleton-Century-Crofts , 1985. PY - 1985 UR - https://library.korea.ac.kr/detail/?cid=CAT000045133122&ctype=m