An Eighteenth-Century Industrialist: Peter Stubs of Warrington, 1756-1806. T. S. Ashton Witt Bowden Journal of Political Economy 1940 48(5), 753-754
The Productivity of Labor: Note on Terminology and Method Witt Bowden Journal of Political Economy 1938 46(6), 857-863
The Productivity of Labor in Great Britain Witt Bowden Journal of Political Economy 1937 45(3), 347-369
The Productivity of Labor in Great Britain: A Further Note Witt Bowden Journal of Political Economy 1937 45(6), 815-816