Bradley, A. D. (1933). The geometry of repeating design and geometry of design for high schools. Columbia University.
Chicago-čujuhus (17. p.)Bradley, A. Day. The Geometry of Repeating Design and Geometry of Design for High Schools. Nueva York: Columbia University, 1933.
MLA-čujuhus (9. p.)Bradley, A. Day. The Geometry of Repeating Design and Geometry of Design for High Schools. Columbia University, 1933.
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