Lua APA (7ú heag.)
Warfield, J. N. (1959). Introduction to electronic analog computers. Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)
Warfield, John N. Introduction to Electronic Analog Computers. Englewood Cliffs, N.J.: Prentice-Hall, 1959.
Lua MLA (9ú heag.)
Warfield, John N. Introduction to Electronic Analog Computers. Prentice-Hall, 1959.
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