Speer, E. R. (1969). Generalized feynman amplitudes, eng.
Chicago Edition CitationSpeer, Eugine R. Generalized Feynman Amplitudes, Eng. 1969.
MLA Edition CitationSpeer, Eugine R. Generalized Feynman Amplitudes, Eng. 1969.
Warning: These citations may not always be 100% accurate.