Groddeck, G. (1961). The Book of the it. Vintage.
Cita Chicago (17th ed.)Groddeck, Georg. The Book of the It. New York: Vintage, 1961.
Cita MLA (9th ed.)Groddeck, Georg. The Book of the It. Vintage, 1961.
Atenció: Aquestes cites poden no estar 100% correctes.