Παραπομπή σε μορφή APA (7η εκδ.)

Blass, P., & Lang, J. (1987). Zariski surfaces and differential equations in characteristic P>p0s. Marcel Dekker.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Blass, Piotr, και Jeffrey Lang. Zariski Surfaces and Differential Equations in Characteristic P>p0s. New York: Marcel Dekker, 1987.

Παραπομπή σε μορφή MLA (9th εκδ.)

Blass, Piotr, και Jeffrey Lang. Zariski Surfaces and Differential Equations in Characteristic P>p0s. Marcel Dekker, 1987.