Allen, R. T. (2014). Ethics as scales of forms. Cambridge Scholars Publishing.
芝加哥风格引文Allen, R. T. Ethics as Scales of Forms. Newcastle upon Tyne, England: Cambridge Scholars Publishing, 2014.
MLA引文Allen, R. T. Ethics as Scales of Forms. Cambridge Scholars Publishing, 2014.
警告：这些引文格式不一定是100％准确.