Cita APA (7a ed.)

Hintikka, J., & Bachman, J. (1992). What if...?: Toward excellence in reasoning. Mayfield.

Cita Chicago Style (17a ed.)

Hintikka, Jaakko, y James Bachman. What If...?: Toward Excellence in Reasoning. Mountain View [California]: Mayfield, 1992.

Cita MLA (9a ed.)

Hintikka, Jaakko, y James Bachman. What If...?: Toward Excellence in Reasoning. Mayfield, 1992.