Παραπομπή σε μορφή APA (7η εκδ.)

Pukelsheim, F. (2017). Proportional Representation: Apportionment Methods and Their Applications (2nd ed. 2017.). Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pukelsheim, Friedrich. Proportional Representation: Apportionment Methods and Their Applications. 2nd ed. 2017. Cham: Springer International Publishing : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pukelsheim, Friedrich. Proportional Representation: Apportionment Methods and Their Applications. 2nd ed. 2017. Springer International Publishing : Imprint: Springer, 2017.