A guide to library services, management, and organization is offered to professionals in this comprehensive bibliography, written in Spanish, of approximately 2500 items. Published by the Universidad Nacional del Sur (The National University of the South) in Bahia Blanca, Argentina, the list covers books, articles, monographs, manuals, catalogs, and bibliographies dealing with library science published up to 1967. The emphasis is historical and practical rather than theoretical. No attempt is made to formulate or establish a philosophy on the social relevance or values of a national library system, or to define the intended audience. Works are classified in the bibliography according to the universally implemented Dewey Decimal System. A front index lists materials alphabetically; there is an author index and an abbreviation list. (DS)