Giraldo Gutiérrez, F. L., & Londoño Vásquez, D. A. (2017). Description and Reference: Language as a Possibility for Veracity. A Matter of World-System Limits and Speech Acts. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGiraldo Gutiérrez, Francisco Luis, और David Alberto Londoño Vásquez. Description and Reference: Language as a Possibility for Veracity. A Matter of World-System Limits and Speech Acts. Universidad Pedagógica y Tecnológica de Colombia, 2017.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGiraldo Gutiérrez, Francisco Luis, और David Alberto Londoño Vásquez. Description and Reference: Language as a Possibility for Veracity. A Matter of World-System Limits and Speech Acts. Universidad Pedagógica y Tecnológica de Colombia, 2017.