XML program to display the book catalogue

Program:

<?xml version="1.0" encoding="UTF-8" ?><?xml-stylesheet type="text/css" href="library.css" ?>
<Catalog xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="catalog.xsd">
    <Book>
        <Title>XML Bible</Title>
       
<Author>Winston</Author>
        <Publication>Wiely</Publication>
        <Edition>Fifth Edition</Edition>
        <ISBN>0-7645-4760-7</ISBN>
        <Price>$40.5</Price>
    </Book>

    <Book>
        <Title>Artificial Intelegence</Title>
        <Author>S.Russel</Author>
        <Publication>Princeton Hall</Publication>
        <Edition>Sixth Edition</Edition>
        <ISBN>0-13-1038-5-2</ISBN>
        <Price>$63</Price>
    </Book>

    <Book>
        <Title>Java2</Title>
        <Author>Watson</Author>
        <Publication>BPB Publications</Publication>
        <Edition>Third Edition</Edition>
        <ISBN>0-41-1058-7-2</ISBN>
        <Price>$60</Price>
    </Book>

    <Book>
        <Title>HTML in 24 hours</Title>
        <Author>Sam Peter</Author>
        <Publication>SAM Publications</Publication>
        <Edition>Fifth Edition</Edition>
        <ISBN>0-0672-32841-2</ISBN>
        <Price>$40</Price>
    </Book>
</Catalog>