APA (7th ed.) Citation

Egan, M. F. (1924). De geometria non-euclidea. Typis et Sumptibus Fel. Rauch.

Chicago Style (17th ed.) Citation

Egan, Michael F. De Geometria Non-euclidea. Oeniponte (Aust.): Typis et Sumptibus Fel. Rauch, 1924.

MLA (9th ed.) Citation

Egan, Michael F. De Geometria Non-euclidea. Typis et Sumptibus Fel. Rauch, 1924.