Keller, J. E. (1970). Higher education objectives: Measures of performance and effectiveness. Univ. of Calif..
芝加哥风格引文Keller, John E. Higher Education Objectives: Measures of Performance and Effectiveness. Berkeley: Univ. of Calif., 1970.
MLA引文Keller, John E. Higher Education Objectives: Measures of Performance and Effectiveness. Univ. of Calif., 1970.
警告：这些引文格式不一定是100％准确.