Sources of information in the computer field (especially in the United Kingdom and the United States) and instruction in the bibliographical control of the literature are provided in this survey which was designed to be of particular use to companies operating or concerned with computer systems. Sources are divided into three categories: primary sources, including major periodicals, research reports and government publications, trade literature, theses, patents, conference proceedings, and translations; secondary sources, including those types of material which contain mostly known information--abstracts and indexes, books, annual reviews, bibliographies; tertiary sources, dealing with directories, service bureaus and systems, and major services in the field offered by libraries. (Author/SP)