More than 2,000 documents about citations, citation analysis, citation indexes, and bibliometrics are cited in this bibliography. Some documents on communication in science, scientometrics, the science of science, and information retrieval have been included where they apply to citation indexing. Although most of the documents cited are in English, several documents in Russian and other languages are included. A subject (keyword) index to the citations is appended. Printed and online sources used in compiling the bibliography are listed. (SW)