SpringerLink (Online service), Negm, A. M., & Zeleňáková, M. (2019). Water Resources in Slovakia: Part I: Assessment and Development (1st ed. 2019.). Springer International Publishing : Imprint: Springer. https://doi.org/10.1007/978-3-319-92853-1
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Abdelazim M. Negm, και Martina Zeleňáková. Water Resources in Slovakia: Part I: Assessment and Development. 1st ed. 2019. Cham: Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-92853-1.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Water Resources in Slovakia: Part I: Assessment and Development. 1st ed. 2019. Springer International Publishing : Imprint: Springer, 2019. https://doi.org/10.1007/978-3-319-92853-1.