ebrary, Inc, Chiva, A., & Manthorpe, J. (2009). Older workers in Europe. Open University Press.
芝加哥风格引文ebrary, Inc, Anthony Chiva, 与 Jill Manthorpe. Older Workers in Europe. Maidenhead, England ; New York: Open University Press, 2009.
MLA引文ebrary, Inc, et al. Older Workers in Europe. Open University Press, 2009.
警告：这些引文格式不一定是100％准确.