diff --git a/en_US.ISO8859-1/books/dev-model/book.sgml b/en_US.ISO8859-1/books/dev-model/book.sgml
index 23ba3e1216..0f78a2c652 100644
--- a/en_US.ISO8859-1/books/dev-model/book.sgml
+++ b/en_US.ISO8859-1/books/dev-model/book.sgml
@@ -73,7 +73,7 @@
             </revision>
         </revhistory>
     </bookinfo>
-    <preface>
+    <preface id="foreword">
 
         <title>Foreword</title>
         <para>
@@ -187,7 +187,7 @@
         </para>
 </chapter>
 
-        <chapter>
+        <chapter id="definitions">
             <title>Definitions</title>
 
             <section id="ref-activity" xreflabel="">
@@ -398,10 +398,10 @@
 
         </chapter>
 
-        <chapter>
+        <chapter id="methodology-model">
             <title>Methodology model</title>
 
-            <section><title>Development model</title>
+            <section id="development-model"><title>Development model</title>
 
                 <para>
                     There is no defined model for how people write code in
@@ -549,7 +549,7 @@
 
             </section>
 
-            <section>
+            <section id="release-branches">
                 <title>Release branches</title>
 
                 <para>
@@ -647,7 +647,7 @@
 
             </section>
 
-            <section>
+            <section id="model-summary">
                 <title>Model summary</title>
 
                 <para>
@@ -716,7 +716,7 @@
             </para>
 
 
-            <section>
+            <section id="general-hats">
                 <title>General Hats</title>
 
                 <section id="role-contributor" xreflabel="Contributor">
@@ -1213,7 +1213,7 @@
 
             </section>
 
-            <section>
+            <section id="proc-depend-hats">
                 <title>Process dependent hats</title>
 
                 <section id="role-problem-originator" xreflabel="Report originator">
@@ -1512,7 +1512,7 @@
 
             </section>
 
-            <section>
+            <section id="committing">
                 <title>Committing code</title>
 
                 <para>
@@ -1737,7 +1737,7 @@
                 </para>
             </section>
 
-            <section>
+            <section id="new-features">
                 <title>Development of new features</title>
 
                 <para>
@@ -2197,7 +2197,7 @@
 
 
 
-        <chapter>
+        <chapter id="tools">
             <title>Tools</title>
 
             <para>
@@ -2314,7 +2314,7 @@
 
         </chapter>
 
-        <chapter>
+        <chapter id="sub-projects">
             <title>Sub-projects</title>
 
             <para>
@@ -2446,7 +2446,7 @@
 
     </chapter>
 
-<bibliography>
+<bibliography id="bibliography">
         <title>References</title>
 
   <biblioentry id="brooks" xreflabel="Brooks, 1995">