APA
Norton B., . (1984). Responsibilities of contractors, sub-contractors and others under the Health and Safety at Work, etc. Act 1974. Ascot, Berks: Chartered Institute of Building.
Chicago
Norton B.R, . 1984. Responsibilities of contractors, sub-contractors and others under the Health and Safety at Work, etc. Act 1974. Ascot, Berks: Chartered Institute of Building.
Harvard
Norton B., . (1984). Responsibilities of contractors, sub-contractors and others under the Health and Safety at Work, etc. Act 1974. Ascot, Berks: Chartered Institute of Building.
MLA
Norton B.R, . Responsibilities of contractors, sub-contractors and others under the Health and Safety at Work, etc. Act 1974. Ascot, Berks: Chartered Institute of Building. 1984.
