SpringerLink (Online service), Billett, S., Harteis, C., & Gruber, H. (2014). International Handbook of Research in Professional and Practice-based Learning. Springer Netherlands : Imprint: Springer.
Παραπομπή σε μορφή Chicago (17η εκδ.)SpringerLink (Online service), Stephen Billett, Christian Harteis, και Hans Gruber. International Handbook of Research in Professional and Practice-based Learning. Dordrecht: Springer Netherlands : Imprint: Springer, 2014.
Παραπομπή σε μορφή MLA (8th εκδ.)SpringerLink (Online service), et al. International Handbook of Research in Professional and Practice-based Learning. Springer Netherlands : Imprint: Springer, 2014.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.