Cita APA (7th ed.)

OCLC, Meckler Corporation, Mecklermedia Corporation, & MCB University Press. (1993). OCLC systems & services. Meckler.

Cita Chicago (17th ed.)

OCLC, Meckler Corporation, Mecklermedia Corporation, i MCB University Press. OCLC Systems & Services. Westport, CT: Meckler, 1993.

Cita MLA (9th ed.)

OCLC, et al. OCLC Systems & Services. Meckler, 1993.