Tohutoro APA (7th ed.)

Yourgrau, W., & Mandelstam, S. (1960). Variational principles in dynamics and quantum theory (2a. ed.). Pitman Publishing.

Tohutoru Kātū Chicago (17th ed.)

Yourgrau, Wolfgang, me Stanley Mandelstam. Variational Principles in Dynamics and Quantum Theory. 2a. ed. Nueva York: Pitman Publishing, 1960.

Tohutoro MLA (9th ed.)

Yourgrau, Wolfgang, me Stanley Mandelstam. Variational Principles in Dynamics and Quantum Theory. 2a. ed. Pitman Publishing, 1960.