Não informado. (1891). Bulletin of the Utah Agricultural Experiment Station. Utah Agricultural Experiment Station.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the Utah Agricultural Experiment Station. Logan, Utah: Utah Agricultural Experiment Station, 1891.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the Utah Agricultural Experiment Station. Utah Agricultural Experiment Station, 1891.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.