Gilchrist, R. S. (1974). Curriculum Development: A humanized systems approach. Phi Delta Kappa.
芝加哥风格引文Gilchrist, Robert S. Curriculum Development: A Humanized Systems Approach. USA: Phi Delta Kappa, 1974.
MLA引文Gilchrist, Robert S. Curriculum Development: A Humanized Systems Approach. Phi Delta Kappa, 1974.
警告：这些引文格式不一定是100％准确.