Ángel, J. E., & Aranda, Y. (2011). Exploration of main international markets for tropical flowers from Tequendama province. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Ángel, Jorge Enrique, và Yesid Aranda. Exploration of Main International Markets for Tropical Flowers from Tequendama Province. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2011.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Ángel, Jorge Enrique, và Yesid Aranda. Exploration of Main International Markets for Tropical Flowers from Tequendama Province. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2011.