Cita APA (7a ed.)

Irrazábal, E., Osorio, Z. B., & Garzás, J. (2011). A hybrid effort estimation model for perfective maintenance: A real experience.

Cita Chicago Style (17a ed.)

Irrazábal, Emanuel, Zurisadai Benjamin Osorio, y JAvier Garzás. A Hybrid Effort Estimation Model for Perfective Maintenance: A Real Experience. 2011.

Cita MLA (8a ed.)

Irrazábal, Emanuel, et al. A Hybrid Effort Estimation Model for Perfective Maintenance: A Real Experience. 2011.