@book{29631,
	author = {Peskin Michael E and  Schroeder Daniel V},
	title = {Introduction to quantum  field theory},
	publisher = {Levant Books      },
	year = {1995},
	address = {Kolkata},
	note = {Appendix A1-A6, 801-810p.; Bibliography 811-816p.; Index 817-842p.}
}