APA (7th ed.) Citation

Seelhorst, B. (2021). 20 Jahre PISA / PISA revisited. Schneider Verlag Hohengehren.

Chicago Style (17th ed.) Citation

Seelhorst, Bernhard. 20 Jahre PISA / PISA Revisited. Baltmannsweiler: Schneider Verlag Hohengehren, 2021.

MLA (9th ed.) Citation

Seelhorst, Bernhard. 20 Jahre PISA / PISA Revisited. Schneider Verlag Hohengehren, 2021.

Warning: These citations may not always be 100% accurate.