PURPOSE: Emergency nursing covers a broad spectrum of health care from trauma surgery support to preventive health care. The purpose of this study is to identify the core literature of emergency nursing and to determine which databases provide the most thorough indexing access to the literature cited in emergency nursing journals. This study is part of the Medical Library Association's Nursing and Allied Health Resources Section's project to map the nursing literature. METHODS: Four key emergency nursing journals were selected and subjected to citation analysis based on Bradford's Law of Scattering. RESULTS: A group of 12 journals made up 33.3% of the 7,119 citations, another 33.3% of the citations appeared in 92 journals, with the remaining 33.3% scattered across 822 journals. Three of the core 12 journals were emergency medicine titles, and 2 were emergency nursing titles from the selected source journals. Government publications constituted 7.5% of the literature cited. CONCLUSIONS: PubMed/MEDLINE provided the best overall indexing coverage for the journals, followed by CINAHL. However, CINAHL provided the most complete coverage for the source journals and the majority of the nursing and emergency medical technology publications and should be consulted by librarians and nurses seeking emergency nursing literature.