Cita APA (7a ed.)

Lanczos, C. (1970). The Variational Principles of Mechanics (4a ed.). University of Toronto Press.

Cita Chicago Style (17a ed.)

Lanczos, Cornelius. The Variational Principles of Mechanics. 4a ed. Toronto: University of Toronto Press, 1970.

Cita MLA (9a ed.)

Lanczos, Cornelius. The Variational Principles of Mechanics. 4a ed. University of Toronto Press, 1970.