Cita APA (7th ed.)

Hadamard, J. (1954). An essay on the psychology of invention in the mathematical field. Dover Publications.

Cita Chicago (17th ed.)

Hadamard, Jacques. An Essay on the Psychology of Invention in the Mathematical Field. New York: Dover Publications, 1954.

Cita MLA (9th ed.)

Hadamard, Jacques. An Essay on the Psychology of Invention in the Mathematical Field. Dover Publications, 1954.

Atenció: Aquestes cites poden no estar 100% correctes.