Schwinger, J. (1970). Particles, sources, and fields. Addison-Wesley.
Cita Chicago Style (17a ed.)Schwinger, Julian. Particles, Sources, and Fields. Reading: Addison-Wesley, 1970.
Cita MLA (9a ed.)Schwinger, Julian. Particles, Sources, and Fields. Addison-Wesley, 1970.
Precaución: Estas citas no son 100% exactas.