Description
Item Description:First paper originally presented as R.P. Feynman's thesis (Ph. D.--Princeton University, 1942).
Second paper originally published: 1948; third paper originally published: 1933.
Physical Description:xxii, 119 pages ; 23 cm
Bibliography:Includes bibliographical references.
ISBN:9812563660
9789812563668
9812563806
9789812563804