Mandelstam, S., & Yourgrau, W. (1968). Variational principles in dynamics and quantum theory (3d ed.). Saunders College Publishing.
Citação norma ChicagoMandelstam, Stanley, and Wolfgang Yourgrau. Variational Principles in Dynamics and Quantum Theory. 3d ed. Philadelphia: Saunders College Publishing, 1968.
Citação norma MLAMandelstam, Stanley, and Wolfgang Yourgrau. Variational Principles in Dynamics and Quantum Theory. 3d ed. Saunders College Publishing, 1968.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.