TY - BOOK AU - x, x AU - x TI - International beta genetic resources network: A report on the 2nd international beta genetic resources worekshop held at the Institue fortcrop science and plant breeding Braunschweig, Germany, 24-28 June 1991 SN - 9290432144 U1 - 630.7/I61 PY - 1992/// CY - Rome PB - International Board for plant Genetic Resource KW - Agriculture - Research N1 - x ER -