APA-Zitierstil (7. Ausg.)

(1971). Directory of educational information resources (Rev. and updated ed.). CCM Information Corporation.

Chicago-Zitierstil (17. Ausg.)

Directory of Educational Information Resources. Rev. and updated ed. New York: CCM Information Corporation, 1971.

MLA-Zitierstil (9. Ausg.)

Directory of Educational Information Resources. Rev. and updated ed. CCM Information Corporation, 1971.