Lua APA (7ú heag.)
Smither, R. D. (1994). The psychology of work and human performance (2nd ed.). Harper Collins College Publishers.
Lua i Stíl Chicago (17ú heag.)
Smither, Robert D. The Psychology of Work and Human Performance. 2nd ed. New York: Harper Collins College Publishers, 1994.
Lua MLA (9ú heag.)
Smither, Robert D. The Psychology of Work and Human Performance. 2nd ed. Harper Collins College Publishers, 1994.
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