Bonola, R. (1955). Non-Euclidean geometry: A critical and historical study of its development. Dover Publications.
Chicago-стиль цитированияBonola, Roberto. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. [New York]: Dover Publications, 1955.
MLA-цитированиеBonola, Roberto. Non-Euclidean Geometry: A Critical and Historical Study of Its Development. Dover Publications, 1955.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.