000 00263nam a22000857a 4500
999 _c516411
_d516411
100 _aEckholm, Erik P.
_922905
245 _aLosing ground :
_bEnvironmental stress and world food prospects
_cby Erik P. Eckholm
260 _aNew York
_bW. W. Norton
_c1976
300 _a223p.