Pinto-Medina, J. A., & Romero-Olarte, R. (2012). Design of an automatic sprinkler irrigation system for the Welsh onion growing, in La Puerta farm (Tota-Boyacá). Universidad Pedagógica y Tecnológica de Colombia - UPTC.
Čikaški stil citiranja (17. izdanje)Pinto-Medina, Jorge Armando, i Rocío Romero-Olarte. Design of an Automatic Sprinkler Irrigation System for the Welsh Onion Growing, in La Puerta Farm (Tota-Boyacá). Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2012.
MLA način citiranja (9. izdanje)Pinto-Medina, Jorge Armando, i Rocío Romero-Olarte. Design of an Automatic Sprinkler Irrigation System for the Welsh Onion Growing, in La Puerta Farm (Tota-Boyacá). Universidad Pedagógica y Tecnológica de Colombia - UPTC, 2012.
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