HOFSTADTER DOUGLAS R. (1987). METAMAGICAL THEMAS: QUESTING FOR ESSENCE OF MIND AND PATTERNS. THE BOOK POINT.
Chicago-viite (17. p.)HOFSTADTER DOUGLAS R. METAMAGICAL THEMAS: QUESTING FOR ESSENCE OF MIND AND PATTERNS. LONDON: THE BOOK POINT, 1987.
MLA-viite (9. p.)HOFSTADTER DOUGLAS R. METAMAGICAL THEMAS: QUESTING FOR ESSENCE OF MIND AND PATTERNS. THE BOOK POINT, 1987.
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