Robertson, S. M. (2014). Betsy Mix Cowles: Champion of equality. Westview Press.
芝加哥风格引文Robertson, Stacey M. Betsy Mix Cowles: Champion of Equality. Boulder, Colorado: Westview Press, 2014.
MLA引文Robertson, Stacey M. Betsy Mix Cowles: Champion of Equality. Westview Press, 2014.
警告：这些引文格式不一定是100％准确.