Citazione Stile APA (7a Edizione)

Lobachevsky, N. I., & Papadopoulos, A. (2010). Pangeometry. European mathematical society.

Citazione stile Chigago Style (17a edizione)

Lobachevsky, Nikolai Ivanovich, e Athanase Papadopoulos. Pangeometry. Zürich: European mathematical society, 2010.

Citatione MLA (8a ed.)

Lobachevsky, Nikolai Ivanovich, e Athanase Papadopoulos. Pangeometry. European mathematical society, 2010.