411 REFERENCE · Wiktionary
50-30-20 rule
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
50-30-20 rule 1
en 50/30/20 rule.
411 REFERENCE · Wiktionary
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.