Não informado. (2018). Report of Work of the Agricultural Experiment Station of the University of California. University of California.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Report of Work of the Agricultural Experiment Station of the University of California. Sacramento, Calif: University of California, 2018.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Report of Work of the Agricultural Experiment Station of the University of California. University of California, 2018.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.