Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service), Brdulak, A., & Brdulak, H. (2017). Happy City - How to Plan and Create the Best Livable Area for the People. Springer International Publishing : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service), Anna Brdulak, και Halina Brdulak. Happy City - How to Plan and Create the Best Livable Area for the People. Cham: Springer International Publishing : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service), et al. Happy City - How to Plan and Create the Best Livable Area for the People. Springer International Publishing : Imprint: Springer, 2017.