This encyclopedia is specialized to the fields of modern science and technology. The 7700 topics covered are accessible through cross-references and the analytical index. Most of the articles contain bibliographies. Check the index first to find the appropriate articles. This general encyclopedia is aimed at elementary grade students through adults.
Articles are concise and clear.
Illustrations often are included. This internet resource provides general information about various countries around the world. More than 9,000 entries record first happenings, discoveries, and inventions in American history. Events are arranged alphabetically, with indexes arranged by years, days of the month, personal names, and geographical location. This source is a good choice if standard directories do not provide the information you need.