Nielsen, J. (1993). Usability engineering. Morgan Kaufmann : Academic Press.
Cita Chicago Style (17a ed.)Nielsen, Jakob. Usability Engineering. San Diego, California [etc.]: Morgan Kaufmann : Academic Press, 1993.
Cita MLA (9a ed.)Nielsen, Jakob. Usability Engineering. Morgan Kaufmann : Academic Press, 1993.
Precaución: Estas citas no son 100% exactas.