National Information Center for Educational Media (U.S.) & National Information Center for Special Education Materials. (1980). NICSEM master index to special education materials. National Information Center for Educational Media, University of Southern California.
Chicago-Zitierstil (17. Ausg.)National Information Center for Educational Media (U.S.) und National Information Center for Special Education Materials. NICSEM Master Index to Special Education Materials. Los Angeles, CA: National Information Center for Educational Media, University of Southern California, 1980.
MLA-Zitierstil (8. Ausg.)National Information Center for Educational Media (U.S.) und National Information Center for Special Education Materials. NICSEM Master Index to Special Education Materials. National Information Center for Educational Media, University of Southern California, 1980.