APA (7e ed.) Bronvermelding

Bradley, A. D. (1933). The geometry of repeating design and geometry of design for high schools. Columbia University.

Chicago (17e ed.) Bronvermelding

Bradley, A. Day. The Geometry of Repeating Design and Geometry of Design for High Schools. Nueva York: Columbia University, 1933.

MLA (9e ed.) Bronvermelding

Bradley, A. Day. The Geometry of Repeating Design and Geometry of Design for High Schools. Columbia University, 1933.