Dewey, John
DDC 23 ඩිවි දශම වර්ගිිකරණය DDC 23 - Divi dashama wargeekaranaya = Dewey decimal classification : DDC 23 - 23rd. - Gampaha Nine Publishing 2017 - 379p. :
9789557688152
LIBRARY CLASSIFICATION SCHEMES
DEWEY DECIMAL CLASSIFICATION
025.45 / D4
DDC 23 ඩිවි දශම වර්ගිිකරණය DDC 23 - Divi dashama wargeekaranaya = Dewey decimal classification : DDC 23 - 23rd. - Gampaha Nine Publishing 2017 - 379p. :
9789557688152
LIBRARY CLASSIFICATION SCHEMES
DEWEY DECIMAL CLASSIFICATION
025.45 / D4