Não informado. (2001). Philippine Agriculturist and Forester. University of the Philippines, College of Agriculture.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Philippine Agriculturist and Forester. Los Banos, Filipinas: University of the Philippines, College of Agriculture, 2001.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Philippine Agriculturist and Forester. University of the Philippines, College of Agriculture, 2001.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.