Παραπομπή σε μορφή APA (7η εκδ.)

Krawcewicz, W., & Wu, J. (1997). Theory of degrees with applications to bifurcations and differential equations. John Wiley.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Krawcewicz, Wieslaw, και Jianhong Wu. Theory of Degrees with Applications to Bifurcations and Differential Equations. New York ; Chichester: John Wiley, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Krawcewicz, Wieslaw, και Jianhong Wu. Theory of Degrees with Applications to Bifurcations and Differential Equations. John Wiley, 1997.