Flórez, L. (2023). The research staff of the english language institute (Charles C. Fries, Director), An Intensive Course in English for Latin-American Students (Revised Edition 1943). Thesavrvs, 1(2), 408–410. Recuperado a partir de https://thesaurus.caroycuervo.gov.co/index.php/rth/article/view/3443