Seltsam, W. H., & Robinson, F. (1968). Metropolitan opera annals: Second supplement : 1957-1966 : a chronicle of artists and performances. H.W. Wilson.
芝加哥风格引文Seltsam, William H., 与 Francis Robinson. Metropolitan Opera Annals: Second Supplement : 1957-1966 : A Chronicle of Artists and Performances. New York: H.W. Wilson, 1968.
MLA引文Seltsam, William H., 与 Francis Robinson. Metropolitan Opera Annals: Second Supplement : 1957-1966 : A Chronicle of Artists and Performances. H.W. Wilson, 1968.
警告：这些引文格式不一定是100％准确.