Cita APA (7th ed.)

Kennedy, H. C. (1980). Peano: Life and works of Giuseppe Peano. D. Reidel.

Cita Chicago (17th ed.)

Kennedy, Hubert C. Peano: Life and Works of Giuseppe Peano. Dordrecht: D. Reidel, 1980.

Cita MLA (9th ed.)

Kennedy, Hubert C. Peano: Life and Works of Giuseppe Peano. D. Reidel, 1980.