Não informado. (1976). Communications in Partial Differential Equations. Marcel Dekker.
Chicago-referens (17:e uppl.)Não informado. Communications in Partial Differential Equations. New York: Marcel Dekker, 1976.
MLA-referens (8:e uppl.)Não informado. Communications in Partial Differential Equations. Marcel Dekker, 1976.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.