Bergman, S. (1969). Integral operators in the theory of linear partial differential equations (2d rev. printing.). Springer-Verlag.
Chicago-referens (17:e uppl.)Bergman, Stefan. Integral Operators in the Theory of Linear Partial Differential Equations. 2d rev. printing. Berlin: Springer-Verlag, 1969.
MLA-referens (9:e uppl.)Bergman, Stefan. Integral Operators in the Theory of Linear Partial Differential Equations. 2d rev. printing. Springer-Verlag, 1969.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.