New York Public Library Main Branch
... that the New York Public Library Main Branch , whose stacks contain an estimated 2.5 million volumes, uses "book trains" to carry books to patrons?
... that the <b id="mwdg"><a href="./New_York_Public_Library_Main_Branch" id="mwdw" rel="mw:WikiLink" title="New York Public Library Main Branch">New York Public Library Main Branch</a></b> <i id="mweA">(pictured)</i>, whose stacks contain an estimated 2.5<span id="mweQ" typeof="mw:Entity"> </span>million volumes, uses "book trains" to carry books to patrons?