--- a/components/timezone/northamerica	Fri Jun 27 16:25:42 2014 +0200
+++ b/components/timezone/northamerica	Wed Jul 16 13:04:34 2014 +0200
@@ -1019,9 +1019,9 @@
 #	Whitman Publishing Co, 2 Niagara Av, Ealing, London (undated),
 #	which I found in the UCLA library.
 #
-#	<a href="http://www.pettswoodvillage.co.uk/Daylight_Savings_William_Willett.pdf">
 #	William Willett, The Waste of Daylight, 19th edition
-#	</a> (1914-03)
+#	<http://cs.ucla.edu/~eggert/The-Waste-of-Daylight-19th.pdf>
+#	[PDF] (1914-03)
 #
 #	Milne J. Civil time. Geogr J. 1899 Feb;13(2):173-94
 #	<http://www.jstor.org/stable/1774359>.