Tham khảo Scott_Duncan

  1. ↑ Joyce, Michael (2004). Football League Players' Records 1888 to 1939. Nottingham: Tony Brown. tr. 80. ISBN 1899468676. 
  2. ↑ Emms, Steve; Wells, Richard (2007). Scottish League Players' Records Division One 1890/91 to 1938/39. Beeston, Nottingham: Tony Brown. ISBN 978-1-899468-66-9.