Não informado. (1936). Bulletin of the California Department of Agriculture. California Department of Agriculture.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Bulletin of the California Department of Agriculture. Sacramento, Calif: California Department of Agriculture, 1936.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Bulletin of the California Department of Agriculture. California Department of Agriculture, 1936.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.