Kent, Allen.
Encyclopedia of Library and Information Science Vol-9 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.545 :
0-8247-2109-8
2K / K8.9
Encyclopedia of Library and Information Science Vol-9 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.545 :
0-8247-2109-8
2K / K8.9