Analysis of works in American literature from the Modern Language Association International Bibliography (1981) in regard to form, class of materials, language, subject, and age found more references to books than journal articles, and age dispersion was broad. Comparisons are made to other similar studies in sciences and humanities. (Author/EM)

Barriers that hinder development of cooperative arrangements among libraries in Costa Rica are identified by studying librarians' perceptions of obstacles. A ranked list of barriers shows that the most important obstacles are related to administration and governance, absence of guidelines, poor public relations, and a limited number of…