ebrary, Inc, Fries, P. H., & Fries, N. M. (1985). Toward an understanding of language: Charles Carpenter Fries in perspective. J. Benjamins.

ebrary, Inc, Peter Howard Fries, and Nancy M. Fries. Toward an Understanding of Language: Charles Carpenter Fries in Perspective. Amsterdam ; Philadelphia: J. Benjamins, 1985.

ebrary, Inc, et al. Toward an Understanding of Language: Charles Carpenter Fries in Perspective. J. Benjamins, 1985.