'Notes for guidance' (4p.) on 'London Building (Constructional) Amending By-Laws 1970' with supplement (iii p.) as inserts.
London Building Acts, 1930-1939, and Constructional By-Laws : metric equivalents of dimensions by Greater London Council. ISBN 0716804220. Published by Greater London Council in 1972. Publication and catalogue information, links to buy online and reader comments.