Cita APA (7a ed.)

Hofstadter, D. R. (2007). I am a strange loop. Basic Books.

Cita Chicago Style (17a ed.)

Hofstadter, Douglas R. I Am a Strange Loop. New York: Basic Books, 2007.

Cita MLA (9a ed.)

Hofstadter, Douglas R. I Am a Strange Loop. Basic Books, 2007.