Lammers, W. W. (1983). Public policy and the aging. Congressional quarterly.
芝加哥风格引文Lammers, Williams W. Public Policy and the Aging. Washington: Congressional quarterly, 1983.
MLA引文Lammers, Williams W. Public Policy and the Aging. Congressional quarterly, 1983.
警告：这些引文格式不一定是100％准确.