摘要:From its beginning more than 60 years ago, ATLA has created indexing and preservation products that have become essential tools for the profession of theological librarianship. The initial print index—Index to Religious Periodical Articles—grew to three separate print indexes (RIO: Religion Index One: Religious Periodicals, RIT: Religion Index Two: Multi-Author Works, and IBRR: Index to Book Reviews in Religion), merged into the ATLA Religion Database (RDB) and gave birth to ATLASerials® (ATLAS®), the full-text companion to the ATLA Religion Database. Initial microfilm projects to preserve more than 30,000 monographs on microfiche, grew to include thousands of historical serials on microfilm, and led to four major preservation microfilming projects in the last ten years.