Schwinger, J. (1970). Particles, sources, and fields. Addison-Wesley.
Chicago-čujuhus (17. p.)Schwinger, Julian. Particles, Sources, and Fields. Reading: Addison-Wesley, 1970.
MLA-čujuhus (9. p.)Schwinger, Julian. Particles, Sources, and Fields. Addison-Wesley, 1970.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.