National Hockey League
2014–2015 Official Rules of the NHL
National Hockey League Official Guide & Record Book 2016
2015–2016 Official Rules of the NHL
2013-14 Official Rules of the NHL
National Hockey League Official Guide & Record Book 2014
2012-2013 Official Rules of the NHL
NHL Official Guide & Record Book 2008–2009
Official Rules of the Nhl 99-00 (National Hockey Lague.//Schedule and Rule Book, 1999 2000)
The Official Rules of the Nhl 1997