Kent, Allen.
Encyclopedia of Library and Information Science Vol-42 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.428 :
0-8247-2042-3
2K / M7.42
Encyclopedia of Library and Information Science Vol-42 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.428 :
0-8247-2042-3
2K / M7.42