Canadian Plant Disease Survey. v.63, 1983
Krehm, H.S., ed.
Canadian Plant Disease Survey. v.63, 1983 edited by H.S. Krehm - Ontario Agriculture Canada 1983 - v.63, 59 p.; 26cm.
0008476X
Canadian Plant Disease Survey. v.63, 1983 edited by H.S. Krehm - Ontario Agriculture Canada 1983 - v.63, 59 p.; 26cm.
0008476X