Kent, Allen.
Encyclopedia of Library and Information Science Vol-33 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.544 :
0-8247-2033-4
2K / K8.33
Encyclopedia of Library and Information Science Vol-33 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.544 :
0-8247-2033-4
2K / K8.33