Cita APA (7th ed.)
Petroski, H. Force: What It Means to Push and Pull, Slip and Grip, Start and Stop. Yale University.
Cita Chicago (17th ed.)
Petroski, Henry. Force: What It Means to Push and Pull, Slip and Grip, Start and Stop. New Haven, EUA: Yale University.
Cita MLA (9th ed.)
Petroski, Henry. Force: What It Means to Push and Pull, Slip and Grip, Start and Stop. Yale University.
Atenció: Aquestes cites poden no estar 100% correctes.