406717 Knowles, P. L., & Sasaki, R. A. (1981). Fluency squares for business and technology. Englewood Cliffs, N.J. : Prentice-Hall.
Chicago-čujuhus (17. p.)406717 Knowles, Phillip L., juo Ruth A. Sasaki. Fluency Squares for Business and Technology. Englewood Cliffs, N.J. : Prentice-Hall, 1981.
MLA-čujuhus (9. p.)406717 Knowles, Phillip L., juo Ruth A. Sasaki. Fluency Squares for Business and Technology. Englewood Cliffs, N.J. : Prentice-Hall, 1981.
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