Cita APA (7a ed.)

Lanczos, C. (1949). The Variational Principles of Mechanics. University of Toronto Press.

Cita Chicago Style (17a ed.)

Lanczos, Cornelius. The Variational Principles of Mechanics. Toronto: University of Toronto Press, 1949.

Cita MLA (8a ed.)

Lanczos, Cornelius. The Variational Principles of Mechanics. University of Toronto Press, 1949.