Journal - A periodical that contains articles written by experts in a particular field of study. Unlike general magazines, journals lack slick advertising and are more scholarly and research-oriented. Microfilm - A photographic image, on a reduced scale, of information that might be otherwise handled in a printed form. Microfilm appears on a continuous roll. Periodical - A serial publication intended to appear indefinitely at regular intervals.
Periodicals usually contain a number of separate articles.
Publication Date - The year in which a book was published, usually printed on the title page. Record - A collection of related data items. For example, the author, title, publisher, publication date, etc. together form a bibliographic record. Reserve Book - Material assigned by faculty to be read by members of a class. This material is usually segregated from the rest of a library's collection and circulated for short periods of time.