+
+class AuthorTerms(Terms):
+    search_fields = ['first_name', 'last_name']
+    queryset = models.Author.objects.all()
+
+class EditorTerms(Terms):
+    search_fields = ['first_name', 'last_name', 'username']
+    queryset = User.objects.all()
+
+    class serializer_class(serializers.Serializer):
+        label = serializers.SerializerMethodField()
+
+        def get_label(self, obj):
+            return f'{obj.last_name}, {obj.first_name}'
+    
+class BookTitleTerms(Terms):
+    queryset = models.Book.objects.all()
+    search_fields = ['title', 'slug']
+
+    class serializer_class(serializers.Serializer):
+        label = serializers.CharField(source='title')
+
+class WLURITerms(Terms):
+    queryset = models.Book.objects.all()
+    search_fields = ['title', 'slug']
+    
+    class serializer_class(serializers.Serializer):
+        label = serializers.CharField(source='wluri')
+