Cita APA (7th ed.)

Keiger, J. F. V. (1997). Raymond Poincare. Cambridge University Press.

Cita Chicago (17th ed.)

Keiger, John F. V. Raymond Poincare. Cambridge: Cambridge University Press, 1997.

Cita MLA (9th ed.)

Keiger, John F. V. Raymond Poincare. Cambridge University Press, 1997.