Kent, Allen.
Encyclopedia of Library and Information Science Vol-34 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.308 :
0-8247-2034-2
2K / K8.34
Encyclopedia of Library and Information Science Vol-34 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.308 :
0-8247-2034-2
2K / K8.34