C. with STEVEN ERLANGE. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=117880463&Fmt=7&clientId=9320&RQT=309&VName=PQD, (May 2002)
A. COWELL, and J. GREENBERG. http://ezproxy.library.wwu.edu/login?url=http://proquest.umi.com/pqdweb?did=119190033&Fmt=7&clientId=9320&RQT=309&VName=PQD, (May 2002)