%A British Ceramic Research Association
%A West, H. W. H.
%A Picken, R. N.
%A Beech, D. G.
%T Investigation of pipes laid directry on the bottom of the trench
%I British Ceramic Research Association
%D 1972
%S Special publication
%V 75
%U https://ci.nii.ac.jp/ncid/BD02598591