Παραπομπή σε μορφή APA (7η εκδ.)

Siegel, F. R., & Siegel, F. R. (2019). Cities and Mega-Cities: Problems and Solution Strategies (1st ed. 2019.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-93166-1

Παραπομπή σε μορφή Chicago (17η εκδ.)

Siegel, Frederic R., και Frederic R. Siegel. Cities and Mega-Cities: Problems and Solution Strategies. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-93166-1.

Παραπομπή σε μορφή MLA (8th εκδ.)

Siegel, Frederic R., και Frederic R. Siegel. Cities and Mega-Cities: Problems and Solution Strategies. 1st ed. 2019. Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-93166-1.