000 00496nam a22001697a 4500
008 230531b |||||||| |||| 00| 0 eng d
020 _a533047447
040 _aNational Science Library
_cNational Science Library
080 _a6.001.1
_bM1
100 _aDas, Ram
_910490
245 _aAppropriate technology:
_bPrecepts and practices
260 _aNew York:
_bVantage Press,
_c1981
300 _axxiii, 311p.
650 _aInformation services
653 _aHuman ecology
942 _2udc
_cBK
999 _c37312
_d37312