000 00294 a2200121 4500
080 _a576.809.481(063)
_bH 169 S
245 1 _aSpores
_bVol. 2
_cby H.O. Halvorson
260 _bBurgess Publishing Co.
_c1961
650 _aSpores
100 1 _aHalvorson, H.O.
_d
300 _a296 p.
901 _a82165
999 _c31343
_d31343