Van Wyngarden, D. K. The Union Institute and its learners' perspective of an andragogical model of higher education: A project demonstrating excellence. University Microfilms International.
芝加哥风格引文Van Wyngarden, Diane K. The Union Institute and Its Learners' Perspective of an Andragogical Model of Higher Education: A Project Demonstrating Excellence. Ann Arbor, MI.: University Microfilms International.
MLA引文Van Wyngarden, Diane K. The Union Institute and Its Learners' Perspective of an Andragogical Model of Higher Education: A Project Demonstrating Excellence. University Microfilms International.
警告：这些引文格式不一定是100％准确.