The Complete Historical and Statistical Reference to the World Hockey ... - Scott Adam Surgent - Google Books

https://books.google.de/books?id=VUT0v_BSkFoC&pg=PA26&dq=%22Ottawa+Nationals%22#v=onepage

From 1972-1979, the World Hockey Association (WHA) functioned as the only major hockey league to rival the established National Hockey League (NHL) since the NHL's 1917 formation. Not expected to survive its first season, the WHA managed to string together…