APA (7 ম সংস্করণ) উদ্ধৃতি

Charpa, U. (2011). The Cambridge "Realgymnasiusm" and the "Freie Schule" London: Historical and philosophical remarks on Gerd Buchdahl and Karl R. Popper / Ulrich Charpa. Year Book / Leo Baeck Institute.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Charpa, Ulrich. "The Cambridge "Realgymnasiusm" and the "Freie Schule" London: Historical and Philosophical Remarks on Gerd Buchdahl and Karl R. Popper / Ulrich Charpa." Year Book / Leo Baeck Institute 2011.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Charpa, Ulrich. "The Cambridge "Realgymnasiusm" and the "Freie Schule" London: Historical and Philosophical Remarks on Gerd Buchdahl and Karl R. Popper / Ulrich Charpa." Year Book / Leo Baeck Institute, 2011.