Table:
text: 1973 NHL Amateur Draft
Round four
Round four
Pick_ Player Position_ Nationality NHL_team College_junior_club_team
49 Andre St. Laurent Centre Canada New York Islanders Montreal Junior Canadiens (QMJHL)
50 Ron Serafini Defence United States California Golden Seals St. Catharines Black Hawks (OHA)
51 Keith Mackie Defence United Kingdom Canada Vancouver Canucks Edmonton Oil Kings (WCHL)
52 Frank Rochon Left Wing Canada Toronto Maple Leafs Sherbrooke Castors (QMJHL)
53 Dean Talafous Centre United States Atlanta Flames University of Wisconsin (NCAA)
54 Jim McCrimmon Defence Canada Los Angeles Kings Medicine Hat Tigers (WCHL)
55 Dennis Owchar Defence Canada Pittsburgh Penguins Toronto Marlboros (OHA)
56 Alan Hangsleben Defence United States Montreal Canadiens University of North Dakota (NCAA)

Question: What nationality is the player drafted in the fourth round of the 1973 NHL Amateur Draft by the Edmonton Oil Kings (WCHL)?