Proctor-Beauchamp, C. R. (1981). Important old master pictures: The properties of Sir Christopher R. P. Beauchamp, the Brabourne Charitable Trust, Countess Bismarck ... ; Friday 10 July 1981. London: Christie's.
Chicago Style CitationProctor-Beauchamp, Christopher Radstock. Important Old Master Pictures: The Properties of Sir Christopher R. P. Beauchamp, the Brabourne Charitable Trust, Countess Bismarck ... ; Friday 10 July 1981. London: Christie's, 1981.
MLA引文Proctor-Beauchamp, Christopher Radstock. Important Old Master Pictures: The Properties of Sir Christopher R. P. Beauchamp, the Brabourne Charitable Trust, Countess Bismarck ... ; Friday 10 July 1981. London: Christie's, 1981.
警告：這些引文格式不一定是100％准確.
