| '; html = html + ' | ';
html = html + ' ';
html = html + ' Call Number';
html = html + ' ';
html = html + ' Call numbers are used by libraries to file the material on the shelves in an organized fashion so they are easy to'; html = html + ' locate. They are based on the subject matter, author‘s last name, and other criteria. '; html = html + ' '; html = html + 'Different libraries may use different call numbers for the same item. Be sure to make note of the exact call number '; html = html + ' if you plan to pick up the item at the library. '; html = html + ''; html = html + 'Two popular call number systems are the Library of Congress Classification System used by many academic libraries.'; html = html + ' Public libraries often use the Dewey Decimal System to assign call numbers. '; html = html + ''; html = html + ' '; html = html + ' | ';
html = html + '