TY - BOOK AU - Zeven, A.C., ed. AU - Harten, A.M. Van, ed. TI - Proceedings of the conference : broadening the genetic base of crops : Wageningen, Netherlands 3 - 7 July, 1978 SN - 9789022006788 PY - 1979/// CY - Wageningen PB - Centre for Agricultural Publishing and Documentation ER -