APA (7th ed.) Citation

Lanczos, C. (1966). The variational principles of mechanics. The University of Toronto.

Chicago Style (17th ed.) Citation

Lanczos, Cornelius. The Variational Principles of Mechanics. Toronto: The University of Toronto, 1966.

MLA (9th ed.) Citation

Lanczos, Cornelius. The Variational Principles of Mechanics. The University of Toronto, 1966.

Warning: These citations may not always be 100% accurate.