00289nam a2200109 a 450000500170000002000150001708200190003210000240005124500530007526000320012830000190016020251203091512.0  a0871500736  a519.5,bD, koo  aKoopmans, Lambert H  aIntroduction to contemporary statistical methods  aBostonbDuxbury pressc1987  axiv,683p, 22cm