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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিGiraldo Gutiérrez, Francisco Luis, এবং 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.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিGiraldo Gutiérrez, Francisco Luis, এবং 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.