Cita APA (7a ed.)

(1989). National Collegiate Software Clearinghouse Software for the Humanities and Social Sciences. Summer 1989 Catalog.

Cita Chicago Style (17a ed.)

National Collegiate Software Clearinghouse Software for the Humanities and Social Sciences. Summer 1989 Catalog. 1989.

Cita MLA (9a ed.)

National Collegiate Software Clearinghouse Software for the Humanities and Social Sciences. Summer 1989 Catalog. 1989.