Thalberg, O. M. (1952). "Conic Involutions" with a conic as coincident curve. Dybwad.
Chicago Style (17th ed.) CitationThalberg, Olaf Marentius. "Conic Involutions" with a Conic as Coincident Curve. Oslo: Dybwad, 1952.
MLA (9th ed.) CitationThalberg, Olaf Marentius. "Conic Involutions" with a Conic as Coincident Curve. Dybwad, 1952.
Warning: These citations may not always be 100% accurate.