Ryburn, W. M., & Forge, K. B. (1957). Principles of teaching (2d ed.). Oxford University Press.
芝加哥风格引文Ryburn, William Morton, 与 Kenneth B. Forge. Principles of Teaching. 2d ed. London: Oxford University Press, 1957.
MLA引文Ryburn, William Morton, 与 Kenneth B. Forge. Principles of Teaching. 2d ed. Oxford University Press, 1957.
警告：这些引文格式不一定是100％准确.