Phi Delta Kappa. Commission on Lifelong Learning & Overly, N. V. (1980). A Model for lifelong learning. Phi Delta Kappa.
芝加哥风格引文Phi Delta Kappa. Commission on Lifelong Learning 与 Norman V. Overly. A Model for Lifelong Learning. Bloomington, Ind.: Phi Delta Kappa, 1980.
MLA引文Phi Delta Kappa. Commission on Lifelong Learning 与 Norman V. Overly. A Model for Lifelong Learning. Phi Delta Kappa, 1980.
警告：这些引文格式不一定是100％准确.