Thalberg, O. M. (1957). "Conic Involutions" with a coincident curve of order 4n. Aschehoug & Co.
Chicago Style (17th ed.) CitationThalberg, Olaf Marentius. "Conic Involutions" with a Coincident Curve of Order 4n. Oslo: Aschehoug & Co, 1957.
MLA (9th ed.) CitationThalberg, Olaf Marentius. "Conic Involutions" with a Coincident Curve of Order 4n. Aschehoug & Co, 1957.
Warning: These citations may not always be 100% accurate.