Não informado. (1958). Mathematics Notes from Washington State University. Washington State University.
Chicago-referens (17:e uppl.)Não informado. Mathematics Notes from Washington State University. Washington: Washington State University, 1958.
MLA-referens (8:e uppl.)Não informado. Mathematics Notes from Washington State University. Washington State University, 1958.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.