Berrocal, I., Jiménez, M., Rojas, J. C., & Salazar, N. (2012). Rates and statistics of work absenteeism: The case of Universidad Nacional (Costa Rica).
Chicago Style aipamenaBerrocal, Ingrid, Miriam Jiménez, Juan Carlos Rojas, y Norma Salazar. Rates and Statistics of Work Absenteeism: The Case of Universidad Nacional (Costa Rica). 2012.
MLA aipamenaBerrocal, Ingrid, Miriam Jiménez, Juan Carlos Rojas, y Norma Salazar. Rates and Statistics of Work Absenteeism: The Case of Universidad Nacional (Costa Rica). 2012.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.