Halliwell, J.J., Orwitz, M. Sum-over-histories origin of the composition laws of relativistic quantum mechanics and quantum cosmology, arXiv:gr-qc/9211004
Kerson Huang, Quantum Field Theory: From Operators to Path Integrals (New York: J. Wiley & Sons, 1998), ISBN 0-471-14120-8
Itzykson, Claude, Zuber, Jean-Bernard Quantum Field Theory, New York: McGraw-Hill, 1980. ISBN 0-07-032071-3
Pokorski, Stefan, Gauge Field Theories, Cambridge: Cambridge University Press, 1987. ISBN 0-521-36846-4(contiene apéndices útiles sobre las reglas de los diagramas de Feynman, incluyendo los propagadores)
Schulman, Larry S., Techniques & Applications of Path Integration, Jonh Wiley & Sons (New York-1981) ISBN 0-471-76450-7