Williams, R. W. (1961). Analogue computation: Techniques and components. Heywood.
Cita Chicago (17th ed.)Williams, Raymond Wilson. Analogue Computation: Techniques and Components. Lond.: Heywood, 1961.
Cita MLA (8th ed.)Williams, Raymond Wilson. Analogue Computation: Techniques and Components. Heywood, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.