SHENTON, J. P., MECKLER, A. M., & HERMANSON, R. H. (1975). Programmed learning aid for United States history since1865. Learning Systems.
芝加哥风格引文SHENTON, James P., Alan M. MECKLER, 与 Roger H. HERMANSON. Programmed Learning Aid for United States History Since1865. Illinois: Learning Systems, 1975.
MLA引文SHENTON, James P., et al. Programmed Learning Aid for United States History Since1865. Learning Systems, 1975.
警告：这些引文格式不一定是100％准确.