books.google.com.br - This book is a modern introduction to the ideas and techniques of quantum field theory. After a brief overview of particle physics and a survey of relativistic wave equations and Lagrangian methods, the author develops the quantum theory of scalar and spinor fields, and then of gauge fields. The emphasis...http://books.google.com.br/books/about/Quantum_Field_Theory.html?hl=pt-BR&id=nnuW_kVJ500C&utm_source=gb-gplus-shareQuantum Field Theory
