6 - Applied sciences. Medicine. Technology. Agriculture.
60 - Biotechnology.
61 - Medicine.
611/612 - Anatomy. Physiology.
613 - Hygiene generally. Personal health and hygiene. Hygiene of the nervous system. Hygiene and ethics. Addictions. Addictive substances.
614 - Public health and safety.
615 - Pharmacy. Pharmacology. Therapeutics. Toxicology.
615.8 - Physiotherapy. Physical therapy. Radiotherapy and other nonmedicinal therapeutic treatment. Psychotherapy.
616 - Diseases. Pathology. Clinical medicine.
616.8 - Neurology. Nervous system diseases. Psychiatry.
62 - Engineering. Mining. Technology. Technological progress.
620 - Materials testing. Economics of energy. Nanotechnology.
621 - Mechanical engineering in general. Nuclear technology. Electrical engineering. Machinery. Telecommunications.
63 - Agriculture. Forestry. Farming. Animal husbandry. Hunting. Fish culture.
64 - Household. Catering. Hotel industry.
654+656 - Telecommunication. Telemechanics. Transport. Postal services.
655 - Graphic industries. Publishing. Book trade.
657 - Accountancy. Bookkeeping.
657.05 - Management, managerial accounting.
657.3 - Budgets. Estimates. Balances. Financial statements.
657.4 - Accounts. Financial accounting. Cost. Cost account.
658 - Business management. Organization and enterprise management.
658.11 - Private enterprises. State-owned enterprises. Companies.
658.14/.17 - Financial issues in the enterprise. Financial management in the enterprise.
658.3 - Enterprise personnel. Human relations in the enterprise. Personnel management in the enterprise.
658.5 - Organization of production.
658.6/.8 - Commercial organization and practice. Goods. Services.
659 - Publicity. Business information. Public relations.
659.1 - Advertisements.
659.23 - Business information. Commercial information.
659.3 - Mass information. Means of mass communication.
659.4 - Forming opinions. Public relations.
66/69 - Industry.
66 - Chemical industry. Chemical technology.
678 - Industries based on macromolecular materials. Polymers. Rubber industry. Plastics industry. Chemistry of polymers.
67/69 - Industry. crafts. Precision mechanisms. Automatic control technology.
6(05) - Applied sciences. Medicine. Technology. Agriculture – serial publications, periodicals.