Weil, S. (1952). Gravity and grace. Routledge and Kegan Paul.
Chicago Style (17th ed.) CitationWeil, Simone. Gravity and Grace. London: Routledge and Kegan Paul, 1952.
MLA引文Weil, Simone. Gravity and Grace. Routledge and Kegan Paul, 1952.
警告:這些引文格式不一定是100%准確.