Não informado. (1980). Bulletin of the Arizona Agricultural Experiment Station. Arizona Agricultural Experiment Station.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Arizona Agricultural Experiment Station. Tucson, Ariz: Arizona Agricultural Experiment Station, 1980.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Arizona Agricultural Experiment Station. Arizona Agricultural Experiment Station, 1980.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.