APA Citation

Potter, R. K., Kopp, G. A., & Kopp, H. G. (1947). Visible speech ([1st ed.].). D. Van Nostrand Co..

MLA Citation

Potter, Ralph Kimball, et al. Visible Speech. [1st ed.]. D. Van Nostrand Co., 1947.

Warning: These citations have been automatically generated and may not always be 100% accurate..