Παραπομπή σε μορφή APA (7η εκδ.)

Beeler, R. A. (2015). How to Count: An Introduction to Combinatorics and Its Applications. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Beeler, Robert A. How to Count: An Introduction to Combinatorics and Its Applications. Cham: Springer International Publishing : Imprint: Springer, 2015.

Παραπομπή σε μορφή MLA (8th εκδ.)

Beeler, Robert A. How to Count: An Introduction to Combinatorics and Its Applications. Springer International Publishing : Imprint: Springer, 2015.