CRX id
gnabknkdeahfhimlfmflnbpckjliopgo
gnabknkdeahfhimlfmflnbpckjliopgo
Description from extension meta
Provides training and practice on the Dewey Decimal Classification System.
Image from store
Description from store
Provides training and practice on the Dewey Decimal Classification System.
Latest update: improve printing support and overall performance