Campbell, R. N., & Lindfors, J. W. (1969). Insights into English structure: A programmed course. Prentice-Hall.
芝加哥风格引文Campbell, Russell N., 与 Judith W. Lindfors. Insights into English Structure: A Programmed Course. Englewood Cliffs, N. J: Prentice-Hall, 1969.
MLA引文Campbell, Russell N., 与 Judith W. Lindfors. Insights into English Structure: A Programmed Course. Prentice-Hall, 1969.
警告：这些引文格式不一定是100％准确.