Cita APA (7th ed.)

524881 Hershey, J. (201). The eureka method: How to think like an inventor. New York : McGraw-Hill.

Cita Chicago (17th ed.)

524881 Hershey, John. The Eureka Method: How to Think like an Inventor. New York : McGraw-Hill, 201.

Cita MLA (9th ed.)

524881 Hershey, John. The Eureka Method: How to Think like an Inventor. New York : McGraw-Hill, 201.

Atenció: Aquestes cites poden no estar 100% correctes.