00418nam a2200157 a 450000500170000008200150001710000130003224500350004526000300008030000180011063000240012896400160015299700110016899900150017995200660019420251202164233.0  a370.1bGHO  aGhosh,BN  aLectures on scientific methods  aNew DelhibSterlingc1986  a155 p.b24 cm  aSscientific methods  bcdefg_  a6614 C  c4441d4441  00104070aPUbPUd1998-04-09g20.00l0o370.1 GHOp6614yBK