Cita APA (7th ed.)

Barr, A., Lindelow, M., Garcia-Montalvo, J., & Serneels, P. (2005). Intrinsic motivations on the development frontline: Do they exist? Do they endure? GPRG.

Cita Chicago (17th ed.)

Barr, A., M. Lindelow, J. Garcia-Montalvo, i P. Serneels. Intrinsic Motivations on the Development Frontline: Do They Exist? Do They Endure? GPRG, 2005.

Cita MLA (9th ed.)

Barr, A., et al. Intrinsic Motivations on the Development Frontline: Do They Exist? Do They Endure? GPRG, 2005.