Sevilla Morales, H., & Gamboa Mena, R. (2015). Interactions 1 as an ELT coursebook: A curricular and theory-based scrutiny. Universidad de Costa Rica.
Cita Chicago (17th ed.)Sevilla Morales, Henry, i Roy Gamboa Mena. Interactions 1 as an ELT Coursebook: A Curricular and Theory-based Scrutiny. Universidad de Costa Rica, 2015.
Cita MLA (9th ed.)Sevilla Morales, Henry, i Roy Gamboa Mena. Interactions 1 as an ELT Coursebook: A Curricular and Theory-based Scrutiny. Universidad de Costa Rica, 2015.
Atenció: Aquestes cites poden no estar 100% correctes.