Fry, R. (1957). Vision and design (2nd printing, (1ra print.,1956).). Meridian Books.
Cita Chicago Style (17a ed.)Fry, Roger. Vision and Design. 2nd printing, (1ra print.,1956). New York: Meridian Books, 1957.
Cita MLA (9a ed.)Fry, Roger. Vision and Design. 2nd printing, (1ra print.,1956). Meridian Books, 1957.
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