Não informado. (2000). Comprehensive index of publications. American Society of Agricultural Engineers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Comprehensive Index of Publications. St. Joseph, Mich: American Society of Agricultural Engineers, 2000.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Comprehensive Index of Publications. American Society of Agricultural Engineers, 2000.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.