SpringerLink (Online service), Krstić, G., & Schneider, F. (2015). Formalizing the Shadow Economy in Serbia: Policy Measures and Growth Effects. Springer International Publishing : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Gorana Krstić, και Friedrich Schneider. Formalizing the Shadow Economy in Serbia: Policy Measures and Growth Effects. Cham: Springer International Publishing : Imprint: Springer, 2015.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. Formalizing the Shadow Economy in Serbia: Policy Measures and Growth Effects. Springer International Publishing : Imprint: Springer, 2015.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.