Ryder, J. D. (1955). Networks, lines and fields (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Ryder, John D. Networks, Lines and Fields. 2nd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1955.
Cita MLA (8th ed.)Ryder, John D. Networks, Lines and Fields. 2nd ed. Prentice-Hall, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.