000 00324nam a22001097a 4500
082 _a312
_bCUR/C
245 _aCurrent estimates :
_bfrom the health interview survey /
260 _aHyattaville :
_bU S department of health education and welfare,
_c1977.
300 _a78p. :
650 _aHealth interview survey
942 _cBK
999 _c305386
_d305386