TY - BOOK AU - Holton, C.S. TI - Studies in the genetics and the cytology of ustilago avenae and ustilago levis U1 - 575 21st ed PY - 1932/// CY - Minnesota PB - University of agricultural experiment station KW - genetics KW - materials and methods KW - study of ustilago avenae-levis N1 - Technical bulletin 87 November 1932 ER -