Παραπομπή σε μορφή APA (7η εκδ.)

Gazzola, F., Grunau, H., & Sweers, G. (2010). Polyharmonic Boundary Value Problems: Positivity Preserving and Nonlinear Higher Order Elliptic Equations in Bounded Domains. Springer-Verlag Berlin Heidelberg.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Gazzola, Filippo, Hans-Christoph Grunau, και Guido Sweers. Polyharmonic Boundary Value Problems: Positivity Preserving and Nonlinear Higher Order Elliptic Equations in Bounded Domains. Berlin, Heidelberg: Springer-Verlag Berlin Heidelberg, 2010.

Παραπομπή σε μορφή MLA (8th εκδ.)

Gazzola, Filippo, et al. Polyharmonic Boundary Value Problems: Positivity Preserving and Nonlinear Higher Order Elliptic Equations in Bounded Domains. Springer-Verlag Berlin Heidelberg, 2010.