Reference work
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A reference work is a document, such as a paper, book, encyclopedia or periodical, to which one can refer for information. The information is intended to be found quickly when needed. Such works are u
The Brockhaus Enzyklopädie, the best-known traditional reference book in German-speaking countries
The Lexikon des Mittelalters, a specialised German encyclopedia
Encyclopædia Britannica, 15th edition: volumes of the Propedia (green), Micropedia (red), Macropedia (black), and 2-volume Index (blue)
Periodical literature
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Periodical literature consists of published works that appear in new releases on a regular schedule. The most familiar example of periodical literature is the newspaper, but the magazine and the journ
Reference work
…A reference work is a document, such as a paper, book, encyclopedia or periodical (or their electronic equivalents, usually available online), to which one can refer for information. The information is intended to be found quickly…
Cover of Science in School magazine