Autor:	Bellardo, Trudi, Bewley, Lois M., McDonald, John P., Palmer, Raymond A., Bearman, Toni Carbo, Saracevic, Tefko, Gerber, Ellen, Coffman, M. Hope
Zdroj:	Journal of Education for Library and Information Science, 1984 Oct 01. 25(2), 145-162.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/40323068 Zobrazit plný text záznamu