Municipal housecleaningNote 6 — STREET CLEANING SYSTEMS AND APPARATUS USED IN AMERICAN CITIES—METHODS OF REDUCING LITTER—COST DATA.Reading editionFlushing only.◇Copy noteReturn to STREET CLEANING SYSTEMS AND APPARATUS USED IN AMERICAN CITIES—METHODS OF REDUCING LITTER—COST DATA.Return to STREET CLEANING SYSTEMS AND APPARATUS USED IN AMERICAN CITIES—METHODS OF REDUCING LITTER—COST DATA.