Cita APA (7th ed.)

ebrary, Inc, Alexanderson, G. L., & Ross, P. (2007). The harmony of the world: 75 years of Mathematics magazine. Mathematical Association of America.

Cita Chicago (17th ed.)

ebrary, Inc, Gerald L. Alexanderson, i Peter Ross. The Harmony of the World: 75 Years of Mathematics Magazine. [Washington, D.C.]: Mathematical Association of America, 2007.

Cita MLA (9th ed.)

ebrary, Inc, et al. The Harmony of the World: 75 Years of Mathematics Magazine. Mathematical Association of America, 2007.