6 volumes (cxlviii, 2208 pages) : illustrations ; 26 cm
V.1: Accounting services --; civil services : public safety --; V.2: Coal mining industry --; food retail industry --; V.3: Food services --; local public administration --; V.4: Logging industry --; postal and package delivery services --; V.5: Printing industry --; telecommunications infrastructure industry --; V.6: Textile and fabrics industry --; water supply industry.