Guidelines for Quality Assurance Inspection of Commercial Activities Contracts for Real Property Maintenance Activities. Guide #12, Custodial ServicesGuidelines for Quality Assurance Inspection of Commercial Activities Contracts for Real Property Maintenance Activities. Guide #12, Custodial Services
Champaign, Ill. : US Army Corps of Engineers, Construction Engineering Research Laboratories ; [Springfield, VA : National Technical Information Service, distributor, 1993]
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