Speer, Eugene R. <br/><br/>
Generalized Feynman amplitudes, 
by Eugene R. Speer. 
 - Princeton, N.J.,  Princeton University Press,  1969. 
 - 120 p.  24 cm. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematical physics  Quantum field theory 
<br/><br/><label>Dewey Class. No.: </label>530.14/3  / SPE