Kent, Allen.
Encyclopedia of Library and Information Science Vol-6 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.683 :
0-8247-2106-3
2K / L1.6
Encyclopedia of Library and Information Science Vol-6 / - First Ed. / - New York-10016 : Marcel Dekker, Inc.. - p.683 :
0-8247-2106-3
2K / L1.6