Citazione APA

Johnston, B. L., & Richman, F. (1997). Numbers and symmetry: An introduction to algebra. CRC Press.

Stile di citazione Chicago

Johnston, Bernard L., e Fred Richman. Numbers and Symmetry: An Introduction to Algebra. Boca Raton: CRC Press, 1997.

Citazione MLA

Johnston, Bernard L., e Fred Richman. Numbers and Symmetry: An Introduction to Algebra. CRC Press, 1997.