Sumner, G., & Smith, R. (1969). Planning local authority services for the elderly. Allen & Unwin.
芝加哥风格引文Sumner, Greta, 与 Randall Smith. Planning Local Authority Services for the Elderly. London: Allen & Unwin, 1969.
MLA引文Sumner, Greta, 与 Randall Smith. Planning Local Authority Services for the Elderly. Allen & Unwin, 1969.
警告：这些引文格式不一定是100％准确.