Παραπομπή APA

Krause, A., & Olson, M. (2005). Basics of S-Plus (4th.). Springer.

Παραπομπή Chicago Style

Krause, Andreas, και Melvin Olson. Basics of S-Plus. 4th. New York: Springer, 2005.

Παραπομπή MLA

Krause, Andreas, και Melvin Olson. Basics of S-Plus. 4th. Springer, 2005.