By N/A
By L. Collis, R. A. Fox
By karl terzaghi, ralph b. peck
By W. H. Ward, D. J. Coats, P. Tedd
By R. N. Craig, A. M. Muir Wood
By Hakan Bohm, Ulf Stjerngren
By Garth Powell
By Barry Parkinson
By Dr. Ing. Leos Hobst, Ing. Josef Zajic
By K H Head
By L G Jaeger
By M J Dumbleton / G West
By The British Geotechnical Society / The Department of Mining Engineering
By S. W. Amos
By Various
By Hendrik de Waard, David Lazarus
By Bjorhovde, Coison, Zandonini
By David L. Edwards
By The Observer
By William Green
By Charles Messenger
By G. D. Redford and others
By J. L. Gwyther, R. V. Page
By S A Urry, P J Turner
By Brian Spooner