APA
Denkowski Z., Papageorgiou N. S. & Migorski S. (2003). An introduction to nonlinear analysis: Theory. Boston: Kluwer.
Chicago
Denkowski Zdzislaw, Papageorgiou Nikolas S and Migorski Stanislaw. 2003. An introduction to nonlinear analysis: Theory. Boston: Kluwer.
Harvard
Denkowski Z., Papageorgiou N. S. and Migorski S. (2003). An introduction to nonlinear analysis: Theory. Boston: Kluwer.
MLA
Denkowski Zdzislaw, Papageorgiou Nikolas S and Migorski Stanislaw. An introduction to nonlinear analysis: Theory. Boston: Kluwer. 2003.