Includes bibliographical references (pages 333-343) and indexes.
Electronic reproduction. Boulder, Colo. : NetLibrary, 2000. Available via the World Wide Web. Available in multiple electronic file formats. Access may be limited to NetLibrary affiliated libraries.
This netLibrary electronic book is provided through the Access Pennsylvania Database project, a statewide library union catalog funded by the Pennsylvania Legislature and administered by the Pennsylvania Department of Education, Office of Commonwealth Libraries, Bureau of Library Development.