Cita APA (7th ed.)

Speer, E. R. (1969). Generalized Feynman amplitudes. Princeton University.

Cita Chicago (17th ed.)

Speer, Eugene R. Generalized Feynman Amplitudes. Princeton: Princeton University, 1969.

Cita MLA (9th ed.)

Speer, Eugene R. Generalized Feynman Amplitudes. Princeton University, 1969.