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README.md

@@ -83,8 +83,8 @@ Comer’s three-volume textbook series, Internetworking with TCP/IP, written in
 <a name="book"></a>
 The Xinu Operating System is documented in the book:
 
-        Operating System Design -- The Xinu Approach, CRC Press,
-        Boca Raton, FL, Linksys version 2012, Second Edition 2015.
+* D. Comer, Operating System Design - The Xinu Approach, Second Edition CRC Press, 2015. ISBN 9781498712439
+
 
 
 

index.html

@@ -96,9 +96,9 @@ was inducted into the Internet Hall of Fame on September, 2019.</p>
 <p>Comer’s three-volume textbook series, Internetworking with TCP/IP, written in 1987, is widely considered to be the authoritative reference for Internet protocols. The series played a key role in popularizing Internet protocols by making them more understandable to a new generation of engineers and IT professionals.</p>
 <p><a name="book"></a>
 The Xinu Operating System is documented in the book:</p>
-<pre><code>    Operating System Design -- The Xinu Approach, CRC Press,
-    Boca Raton, FL, Linksys version 2012, Second Edition 2015.
-</code></pre>
+<ul>
+<li>D. Comer, Operating System Design - The Xinu Approach, Second Edition CRC Press, 2015. ISBN 9781498712439</li>
+</ul>
 <p><a name="lab"></a></p>
 <h3>Getting started</h3>
 <p>Xinu is easy of understand, so a developer can obtain a copy