Folmar, D. (2015). Game it up!: Using gamification to incentivize your library. Rowman & Littlefield.
Cita Chicago (17th ed.)Folmar, David. Game It Up!: Using Gamification to Incentivize Your Library. Lanham: Rowman & Littlefield, 2015.
Cita MLA (9th ed.)Folmar, David. Game It Up!: Using Gamification to Incentivize Your Library. Rowman & Littlefield, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.