Franklin ENC-4047 Concise Columbia Encyclopedia Bookman Card Contains over 16,000 articles at your fingertips supplying you with a wealth of cultural, historical, biographical and scientific information. This new edition provides updated information on events of the late 20th and early 21st centuries. Search by name, location, subject, or keywords Cross-references included for easy look-up. Compatible with pocket and desktop Bookman model platforms 1450, 1470, 1845, 1850 or 1870 only.