Bailey, H. L. (1955). Vermont's potato story: A history of the potato industry in Vermont, the seed certification service, and the Vermont Certified Seed and Potato Growers Association. The Association.
Dyfyniad Arddull ChicagoBailey, Harold L. Vermont's Potato Story: A History of the Potato Industry in Vermont, the Seed Certification Service, and the Vermont Certified Seed and Potato Growers Association. [Montpelier, Vt.?]: The Association, 1955.
Dyfyniad MLABailey, Harold L. Vermont's Potato Story: A History of the Potato Industry in Vermont, the Seed Certification Service, and the Vermont Certified Seed and Potato Growers Association. The Association, 1955.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.