McGinnis, Martha2007-04-102007-04-102000In Current Work in Linguistics, ed. Alexander Williams & Elsi Kaiser. Penn Working Papers in Linguistics 6.3, 107-144. Department of Linguistics, University of Pennsylvania.http://hdl.handle.net/1880/44529engLinguisticsEvent heads and the Distribution of Psych-rootsworking paper10.11575/PRISM/10075