Code for Classifiers

Code for classifiers Merrill, William Stetson Dewey decimal classification and relative index Dewey, Melvil Dewey decimal classification and relative index Dewey, Melvil Dewey decimal classification Mahmud ul-Hassan Dewey decimal classification and relative index Dewey, Melvil Dewey decimal classification and relative index Dewey, Melvil A modern outline of library classification Mills, J. Library cataloguing and classification systems edited by M. S. Ramalingam