ebrary, Inc, Rivera, I. C., & Howard, N. M. (2010). Child labor in America. Nova Science Publishers.
芝加哥风格引文ebrary, Inc, Ian C. Rivera, 与 Natasha M. Howard. Child Labor in America. New York: Nova Science Publishers, 2010.
MLA引文ebrary, Inc, et al. Child Labor in America. Nova Science Publishers, 2010.
警告：这些引文格式不一定是100％准确.