Vargas Vega, B., & Velásquez Upegui, E. P. (2019). Acquisition of Nouns Derived from a Verb of English as L2. Universidad Pedagógica y Tecnológica de Colombia.
芝加哥风格引文Vargas Vega, Brenda, 与 Eva Patricia Velásquez Upegui. Acquisition of Nouns Derived from a Verb of English as L2. Universidad Pedagógica y Tecnológica de Colombia, 2019.
MLA引文Vargas Vega, Brenda, 与 Eva Patricia Velásquez Upegui. Acquisition of Nouns Derived from a Verb of English as L2. Universidad Pedagógica y Tecnológica de Colombia, 2019.
警告：这些引文格式不一定是100％准确.
