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.
Čikaški stil citiranja (17. izdanje)Ángel, Jorge Enrique, i 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.
MLA način citiranja (9. izdanje)Ángel, Jorge Enrique, i 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.
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