Não informado. Northwestern Alumni News. North western University, Alumni Association Boardof Directors.
Chicago-viite (17. p.)Não informado. Northwestern Alumni News. Evanston, Ill: North western University, Alumni Association Boardof Directors.
MLA-viite (8. p.)Não informado. Northwestern Alumni News. North western University, Alumni Association Boardof Directors.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.