SpringerLink (Online service), Hadjiantonis, A. M., & Stiller, B. (2012). Telecommunication Economics: Selected Results of the COST Action ISO605 Econ@Tel. Springer Berlin Heidelberg : Imprint: Springer. https://doi.org/10.1007/978-3-642-30382-1
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Antonis M. Hadjiantonis, και Burkhard Stiller. Telecommunication Economics: Selected Results of the COST Action ISO605 Econ@Tel. Berlin, Heidelberg: Springer Berlin Heidelberg : Imprint: Springer, 2012. https://doi.org/10.1007/978-3-642-30382-1.
Παραπομπή σε μορφή MLA (9th εκδ.)SpringerLink (Online service), et al. Telecommunication Economics: Selected Results of the COST Action ISO605 Econ@Tel. Springer Berlin Heidelberg : Imprint: Springer, 2012. https://doi.org/10.1007/978-3-642-30382-1.