http://hdl.handle.net/1721.1/7871 2013-05-22T17:39:54Z http://hdl.handle.net/1721.1/13881 Leon Trotsky: a psychobiographical study. Cohen, Stephen Alan Massachusetts Institute of Technology. Dept. of Political Science. Thesis. 1968. B.S.; Bibliography: leaves 93-94. 1968-01-01T00:00:00Z http://hdl.handle.net/1721.1/14686 An application of systematic analysis to the M.I.T. Libraries. Shishko, Robert Massachusetts Institute of Technology. Dept. of Political Science. Thesis. 1968. B.S. (Also B.S. in Economics).; Sixteen unnumbered leaves inserted. Co-author: Jeffrey Raffel.; Bibliography: â„“. 82. 1968-01-01T00:00:00Z