00375nam a2200133Ia 4500008004100000082002900041100002200070245004900092260003100141300001000172600002000182600002000202650001900222140113s9999    xx            000 0 und d  a58.036.5'035.2(082.2) H8  a" Murneek, A. E."  aVernalization and photoperiodism a symposium  b"USA : Waltham mass, 1948"  a193p.  a" Whyte, R. O."  a" Whyte, R. O."  aPhotoperiodism