00478nam a2200157Ia 4500008004100000082001300041100001700054245005000071260003400121300001000155600001800165600001800183942000700201952009500208999001700303140113s9999    xx            000 0 und d  a581(07)   a" Mason, J."  aRural science: nature study and plant biology  b"Mdougall,s educational co, "  a176p.  a" Dow, J. A."  a" Dow, J. A."  cBK  00104070aKYMbKYMd2014-01-13l0o581(07) pKBK973r2014-01-13 00:00:00w2014-01-13yBK  c64419d64419