Weimer, J. (1995). Research techniques in human engineering. Prentice Hall.
Lua i Stíl Chicago (17ú heag.)Weimer, Jon. Research Techniques in Human Engineering. Englewood Cliffs, NJ: Prentice Hall, 1995.
Lua MLA (9ú heag.)Weimer, Jon. Research Techniques in Human Engineering. Prentice Hall, 1995.
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