APA Edition Citation

Yourgrau, W. M. (1968). Variational principles in dynamics and quantum theory.

Chicago Edition Citation

Yourgrau, Wolfgang; Mandelstam. Variational Principles in Dynamics and Quantum Theory. Dover Publcations, New York, 1968.

MLA Edition Citation

Yourgrau, Wolfgang; Mandelstam. Variational Principles in Dynamics and Quantum Theory. 1968.

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