Παραπομπή σε μορφή APA (7η εκδ.)

Carl, S., & Heikkilä, S. (2011). Fixed Point Theory in Ordered Sets and Applications: From Differential and Integral Equations to Game Theory. Springer New York.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Carl, Siegfried, και Seppo Heikkilä. Fixed Point Theory in Ordered Sets and Applications: From Differential and Integral Equations to Game Theory. New York, NY: Springer New York, 2011.

Παραπομπή σε μορφή MLA (8th εκδ.)

Carl, Siegfried, και Seppo Heikkilä. Fixed Point Theory in Ordered Sets and Applications: From Differential and Integral Equations to Game Theory. Springer New York, 2011.