000 00296nam a22000857a 4500
008 250915b 00 0 eng d
100 _aBartenieff Irmgard
_929749
245 _aFour Adaptations of effort theory in research and teaching
_cBartenieff Irmgard
260 _aUSA
_bDance Notation Bureau
_c1970
999 _c103550
_d103550