Great Britain. Committee on Industry and Trade & Balfour, A. (1928). Further factors in industrial and commercial efficiency: Being part II of a Survey of industries. H.M.S.O..
Cita Chicago (17th ed.)Great Britain. Committee on Industry and Trade i Arthur Balfour. Further Factors in Industrial and Commercial Efficiency: Being Part II of a Survey of Industries. London: H.M.S.O., 1928.
Cita MLA (8th ed.)Great Britain. Committee on Industry and Trade i Arthur Balfour. Further Factors in Industrial and Commercial Efficiency: Being Part II of a Survey of Industries. H.M.S.O., 1928.
Atenció: Aquestes cites poden no estar 100% correctes.