Cita APA (7a ed.)

Naula Guamán, E. E., & González Hurtado, F. E. Grammar reinforcement in the learning of english in the fourth grade in the urban area.

Cita Chicago Style (17a ed.)

Naula Guamán, Elvia Esperanza, y Fanny Elvira González Hurtado. Grammar Reinforcement in the Learning of English in the Fourth Grade in the Urban Area.

Cita MLA (8a ed.)

Naula Guamán, Elvia Esperanza, y Fanny Elvira González Hurtado. Grammar Reinforcement in the Learning of English in the Fourth Grade in the Urban Area.