Lutenist & Theorbeist.
Philip J. R. Moyes
Construction Industry Research and Information Association.
Institution of Chemical Engineers. Scottish Branch.
Symposium sobre Yacimientos de Manganeso (1956 Mexico City)
International Telephone and Telegraph Corporation.
Gavin Siegmund Hall
European Organisation for Experimental Photogrammetric Reserarch.
Raymond L. Bartley
Japan Information Centre.
Ellis Adolph Stokdyk
Yorkshire (West Riding). Education Committee.