222423 Knapper, C. K., & Cropley, A. J. (1985). Lifelong learning and higher education. Beckenham, Kent : Croom Helm.
芝加哥风格引文222423 Knapper, Christopher K., 与 A. J. Cropley. Lifelong Learning and Higher Education. Beckenham, Kent : Croom Helm, 1985.
MLA引文222423 Knapper, Christopher K., 与 A. J. Cropley. Lifelong Learning and Higher Education. Beckenham, Kent : Croom Helm, 1985.
警告：这些引文格式不一定是100％准确.