Foundation Review. Grand Valley State University on Behalf of the Dorothy A. Johnson Center for Philanthropy.
Chicago-referens (17:e uppl.)Foundation Review. Grand Valley State University on Behalf of the Dorothy A. Johnson Center for Philanthropy.
MLA-referens (9:e uppl.)Foundation Review. Grand Valley State University on Behalf of the Dorothy A. Johnson Center for Philanthropy.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.