000 00272nam a2200121Ia 4500
100 _aAveling, Francis
942 _cBK
654 _a
245 _aDirecting mental energy
260 _aLondon
_bUniversity of London Press
_c1927
082 _a157.8
300 _bHb
_ax, 276
999 _c359301
_d359301
041 _aeng