APA (7th ed.) Citation

Hanner, O. (1952). Retraction and extension of mappings.

Chicago Style (17th ed.) Citation

Hanner, Olof. Retraction and Extension of Mappings. 1952.

MLA (8th ed.) Citation

Hanner, Olof. Retraction and Extension of Mappings. 1952.

Warning: These citations may not always be 100% accurate.