Universal Decimal Classification. English full edition-Plastic or chipless working, forming and treatment of materials
standard by BSI Group, 06/30/1977

Universal Decimal Classification. Second English full edition-Social sciences in general. Sociology. Sociography
standard by BSI Group, 04/30/1980

Universal Decimal Classification. English full edition-Chemical technology. Chemical engineering, production and processing, operations and plant
standard by BSI Group, 05/31/1983

Methods for analysis and testing of coal and coke. Forms of sulphur in coal
standard by BSI Group, 11/17/1970

Analysis and testing of coal and coke total moisture of coke
standard by BSI Group, 07/13/1966

Pipe flanges for land use
standard by BSI Group, 02/27/1928

Air-break knife switches and air-break isolating switches for voltages not exceeding 660 volts excluding totally-enclosed and flame proof types
standard by BSI Group, 01/30/1933

Universal Decimal Classification. English full edition-Education. Teaching. Training. Leisure
standard by BSI Group, 06/30/1975

Universal Decimal Classification. English full edition-Economics
standard by BSI Group, 05/30/1969

Universal Decimal Classification. English full edition-Index to the selection of common auxiliaries of place for use with UDC 9
standard by BSI Group, 06/16/1972