--- trunk/conf/normalize/webpacus.pl	2007/11/02 13:00:55	964
+++ trunk/conf/normalize/webpacus.pl	2007/11/02 14:59:32	974
@@ -4,6 +4,12 @@
 	)
 );
 
+warn "### isbn_13 = ",dump(
+	isbn_13(
+		rec('020','a')
+	)
+);
+
 search_display('ISBN_incorrect',
 	rec('010','z')
 );