Pacheco, A., & Pohlan, J. (2011). Intercropping aromatic plants with coffee (Coffea arabica L.) under greenhouse and field conditions. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Pacheco, Alex, và Jürgen Pohlan. Intercropping Aromatic Plants with Coffee (Coffea Arabica L.) Under Greenhouse and Field Conditions. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2011.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)Pacheco, Alex, và Jürgen Pohlan. Intercropping Aromatic Plants with Coffee (Coffea Arabica L.) Under Greenhouse and Field Conditions. Sociedad Colombiana de Ciencias Hortícolas-SCCH and Universidad Pedagógica y Tecnológica de Colombia-UPTC, 2011.