Bonola, Roberto; Bolyai, John and Lobachevski, Nicholas - Non-Euclidean geometry: a critical and historical study of its development. The science of absolute space and the theory of parallels (3 books in one).

U.S.A: Dover Publications Inc. 1955. Reprint. Softcover. Clean and tightly bound paperback, spine uncreased, card covers rubbed at edges, name on half title page. xii + 268 pages, index, xxx + 72 pages, 50 pages, bibliography + 24 pages of publisher's catalogue. Good.