Thomas, A. R. (1995). Classification: Options and opportunities. Haworth Press.
芝加哥风格引文Thomas, Alan R. Classification: Options and Opportunities. New York: Haworth Press, 1995.
MLA引文Thomas, Alan R. Classification: Options and Opportunities. Haworth Press, 1995.
警告：这些引文格式不一定是100％准确.