Cita APA (7a ed.)
(Jul/Aug2009). Products and services by vendor. Computers in Libraries, 29(7), 31-50.
Cita Chicago Style (17a ed.)
"Products and Services by Vendor." Computers in Libraries 29, no. 7 (Jul/Aug2009): 31-50.
Cita MLA (9a ed.)
"Products and Services by Vendor." Computers in Libraries, vol. 29, no. 7, Jul/Aug2009, pp. 31-50.
Precaución: Estas citas no son 100% exactas.