Alabama. Dept. of Agriculture and Industries. Division of Plant Industry. (1943). Certification of seed sweet potatoes and sweet potato plants (Rev.). The Division.
Dyfyniad Arddull ChicagoAlabama. Dept. of Agriculture and Industries. Division of Plant Industry. Certification of Seed Sweet Potatoes and Sweet Potato Plants. Rev. Montgomery, Ala.: The Division, 1943.
Dyfyniad MLAAlabama. Dept. of Agriculture and Industries. Division of Plant Industry. Certification of Seed Sweet Potatoes and Sweet Potato Plants. Rev. The Division, 1943.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.