Schulz, W., Ainley, J., Fraillon, J., Losito, B., Agrusti, G., & Friedman, T. (2020). Becoming Citizens in a Changing World. Springer International Publishing.

Schulz, Wolfram, John Ainley, Julian Fraillon, Bruno Losito, Gabriella Agrusti, và Tim Friedman. Becoming Citizens in a Changing World. Springer International Publishing, 2020.

Schulz, Wolfram, et al. Becoming Citizens in a Changing World. Springer International Publishing, 2020.