Cita APA (7a ed.)
OCLC, Meckler Corporation, Mecklermedia Corporation, & MCB University Press. (1993). OCLC systems & services. Meckler.
Cita Chicago Style (17a ed.)
OCLC, Meckler Corporation, Mecklermedia Corporation, y MCB University Press. OCLC Systems & Services. Westport, CT: Meckler, 1993.
Cita MLA (9a ed.)
OCLC, et al. OCLC Systems & Services. Meckler, 1993.
Precaución: Estas citas no son 100% exactas.