Cita APA (7a ed.)
Curriculum Innovations, inc. (1981). Writing. [Curriculum Innovations].
Cita Chicago Style (17a ed.)
Curriculum Innovations, inc. Writing. [Highland Park, Ill.]: [Curriculum Innovations], 1981.
Cita MLA (9a ed.)
Curriculum Innovations, inc. Writing. [Curriculum Innovations], 1981.
Precaución: Estas citas no son 100% exactas.