title: Hard truths: stone, clay, terrazzo and concrete floor care.
authors.affiliation: Cleaning Consultant Services Inc., Seattle, USA. wgriffin@cleaningconsultants.com
authors.forename: William R
authors.initials: WR
authors.lastname: Griffin
mesh_terms: D003252:Construction Materials; D005430:Floors and Floorcoverings; D006268:Health Facilities; D008283:Maintenance; D014481:United States