APA (7th ed.) Citation

Hofstadter, D. R. (1986). Metamagical themas: Questing for the essence of mind and pattern. Penguin Books.

Chicago Style (17th ed.) Citation

Hofstadter, Douglas R. Metamagical Themas: Questing for the Essence of Mind and Pattern. London: Penguin Books, 1986.

MLA (8th ed.) Citation

Hofstadter, Douglas R. Metamagical Themas: Questing for the Essence of Mind and Pattern. Penguin Books, 1986.

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