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retrieving revision 1.111
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--- www/books.html	2016/12/31 21:51:44	1.110
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@@ -95,10 +95,12 @@
 <h3>BSD-specific books</h3>
 <dl>
 <dt>
-<i>The Design and Implementation of the 4.4 BSD Operating System</i>
+<i>The Design and Implementation of the 4.4BSD Operating System</i>
 <dd>by Marshal Kirk McKusick, Keith Bostic, Michael J. Karels, John S. Quarterman
+<dd>ISBN-10: 0132317923
+<dd>ISBN-13: 978-0132317924 
 <dd>
-At 549 pages plus an index, <a href="http://www.awprofessional.com/title/0201549794">this book</a> must be considered comprehensive.
+At 549 pages plus an index, this book must be considered comprehensive.
 McKusick, Bostic and Karels are well known as prime movers at
 Berkeley CSRG (Computer Systems Research Group) during the 4.3/4.4BSD
 period. This book covers the 4.4 and 4.4-Lite releases, and discusses