Langrish, J. (1972). Wealth from knowledge: Studies of innovation in industry. Macmillan.
Cita Chicago (17th ed.)Langrish, J. Wealth from Knowledge: Studies of Innovation in Industry. London: Macmillan, 1972.
Cita MLA (8th ed.)Langrish, J. Wealth from Knowledge: Studies of Innovation in Industry. Macmillan, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.