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MacMillan Co, London & NY, Pergamon Press, 1962, first edition; 122 pages, Index, references,
MacMillan Co, London & NY, Pergamon Press, 1962, first edition; 122 pages, Index, references,
JAES 1959, pp 62-104 inclusive, plus advertisements at rear; double-column text, diagrams, some photographs, references.
Notes on Applied Science No. 16, NPL, London 1957, 1961 second edition, fourth impression 1965; 170 pages, index, extensive Biblliography.