APA Style
Guerra, A. (2017).
PBL, Social Progress and Sustainability : 6th International Research Symposium on PBL .
Aalborg:
Aalborg University Press.
MLA Style
Guerra, Aida.
"PBL, Social Progress and Sustainability : 6th International Research Symposium on PBL".
Aalborg:
Aalborg University Press,
2017.
Text.