Downey, R. G., & Greenberg, N. (2020). A hierarchy of Turing degrees: A transfinite hierarchy of lowness notions in the computably enumerable degrees, unifying classes, and natural definability. Princeton University Press.
Chicago Style (17th ed.) CitationDowney, R. G., and Noam Greenberg. A Hierarchy of Turing Degrees: A Transfinite Hierarchy of Lowness Notions in the Computably Enumerable Degrees, Unifying Classes, and Natural Definability. Princeton: Princeton University Press, 2020.
MLA (8th ed.) CitationDowney, R. G., and Noam Greenberg. A Hierarchy of Turing Degrees: A Transfinite Hierarchy of Lowness Notions in the Computably Enumerable Degrees, Unifying Classes, and Natural Definability. Princeton University Press, 2020.
Warning: These citations may not always be 100% accurate.