CODE OF PRACTICE FOR SUBSURFACE INVEVESTIGATION FOR FOUNDATION
I.S.I:1892-1979
CODE OF PRACTICE FOR SUBSURFACE INVEVESTIGATION FOR FOUNDATION - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1981 - 45
CODE OF PRACTICE FOR SUBSURFACE INVEVESTIGATION FOR FOUNDATION - LONDON THAMES AND HUDSON PUBLISHING COMPANY 1981 - 45