APA (7th ed.) Citation

Charpa, U. (2011). The Cambridge "Realgymnasium" and the "Freie Schule" London _ historical and philosophical remarks on Gerd Buchdahl and Karl R. Popper. Year-book.

Chicago Style (17th ed.) Citation

Charpa, Ulrich. "The Cambridge "Realgymnasium" and the "Freie Schule" London _ Historical and Philosophical Remarks on Gerd Buchdahl and Karl R. Popper." Year-book 2011.

MLA (8th ed.) Citation

Charpa, Ulrich. "The Cambridge "Realgymnasium" and the "Freie Schule" London _ Historical and Philosophical Remarks on Gerd Buchdahl and Karl R. Popper." Year-book, 2011.