Παραπομπή APA

Engel, K., & Nagel, R. (2006). A short course on operator semigroups. Springer.

Παραπομπή Chicago Style

Engel, Klaus-Jochen, και Rainer Nagel. A Short Course on Operator Semigroups. New York, N.Y.: Springer, 2006.

Παραπομπή MLA

Engel, Klaus-Jochen, και Rainer Nagel. A Short Course on Operator Semigroups. Springer, 2006.