ddc 10 main classes
Library Academy
DDC: 10 Main Classes, Tables & MCQs for Library Science Exam
Dewey Decimal Classification (DDC) has 10 Main Classes, 100 Divisions, and 1000 Sections, Developed in 1976 by Melvil Dewey, and Maintained by OCLC. Dewey Decimal Classification (DDC): Overview ...