Cita APA (7a ed.)
(2006). Products & Services. American City & County, 121(9), 13-55.
Cita Chicago Style (17a ed.)
"Products & Services." American City & County 121, no. 9 (2006): 13-55.
Cita MLA (9a ed.)
"Products & Services." American City & County, vol. 121, no. 9, 2006, pp. 13-55.
Precaución: Estas citas no son 100% exactas.