000 00297 a2200121 4500
080 _a575.1
_bW 447 L
245 1 _aLinkage-studies in Pisum I
_cby S.J. Wellensiek
260 _a's-Gravenhage
_c1927
650 _aPisum I
650 _aLinkage Studies
100 1 _aWellensiek, S.J.
_d
901 _a4434
999 _c31026
_d31026