Gaya APA
Schulz, W. et al (2016).
IEA International Civic and Citizenship Education Study 2016 Assessment Framework (1st ed.).
Cham:
Springer.
Gaya MLA
Schulz, Wolfram.. et al.
"IEA International Civic and Citizenship Education Study 2016 Assessment Framework".
1st ed.
Cham:
Springer,
2016.
E Book.