Rufsvold, M. I. (1977). Guides to educational media : films, filmstrips, multimedia kits, programmed instruction materials, recordings on discs and tapes, slides, transparencies, videotapes: Margaret Irene Rufsvold (4th ed.). American Library Association.
Citazione stile Chigago Style (17a edizione)Rufsvold, Margaret Irene. Guides to Educational Media : Films, Filmstrips, Multimedia Kits, Programmed Instruction Materials, Recordings on Discs and Tapes, Slides, Transparencies, Videotapes: Margaret Irene Rufsvold. 4th ed. Chicago: American Library Association, 1977.
Citatione MLA (9a ed.)Rufsvold, Margaret Irene. Guides to Educational Media : Films, Filmstrips, Multimedia Kits, Programmed Instruction Materials, Recordings on Discs and Tapes, Slides, Transparencies, Videotapes: Margaret Irene Rufsvold. 4th ed. American Library Association, 1977.