The occurrence in the United States of the tuber ring rot and wilt of the potato (Phytomonas sepedonica) (Spickermann u. Kott-hoff) Bergey et al. Walter H. Burkholder OriginalPaper Pages: 243 - 245
Studies of resistance to potato scab in Wisconsin J. WalkerR. H. LarsonA. R. Albert OriginalPaper Pages: 246 - 252