METRIC UNITS WITH REFERENCE TO WATER SEWAGE & RELATED SUBJECTS: REPORT OF WORKING PARTY
MINISTRY OF HOUSING & LOCAL GOVT.
METRIC UNITS WITH REFERENCE TO WATER SEWAGE & RELATED SUBJECTS: REPORT OF WORKING PARTY - H.M.S.O 1968
METRIC UNITS WITH REFERENCE TO WATER SEWAGE & RELATED SUBJECTS: REPORT OF WORKING PARTY - H.M.S.O 1968