Cita APA (7a ed.)

Yourgrau, W., & Mandelstam, S. (1979). Variational principles in dynamics and quantum theory. Dover.

Cita Chicago Style (17a ed.)

Yourgrau, Wolfgang, y Stanley Mandelstam. Variational Principles in Dynamics and Quantum Theory. New York: Dover, 1979.

Cita MLA (9a ed.)

Yourgrau, Wolfgang, y Stanley Mandelstam. Variational Principles in Dynamics and Quantum Theory. Dover, 1979.