Cita APA

Miranda Calderón, L. A., & Bonilla Ugalde, N. G. (2011). Proposal for Academic Achievement and Permanence of Students in the 7th Grade (1). Universidad Nacional, Costa Rica.

Citación estilo Chicago

Miranda Calderón, Luis Alfredo, y Nury Ginnette Bonilla Ugalde. Proposal for Academic Achievement and Permanence of Students in the 7th Grade (1). Universidad Nacional, Costa Rica, 2011.

Cita MLA

Miranda Calderón, Luis Alfredo, y Nury Ginnette Bonilla Ugalde. Proposal for Academic Achievement and Permanence of Students in the 7th Grade (1). Universidad Nacional, Costa Rica, 2011.