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  1. 1

    Observational studies by Rosenbaum, Paul R.

    New York : Springer, 2002
    2nd ed.
    Format: Book


  2. 2

    Experimental and quasi-experimental designs for generalized causal inference by Shadish, William R.

    Boston : Houghton Mifflin, 2001
    Format: Book


  3. 3

    Quasi-experimentation : design & analysis issues for field settings by Cook, Thomas D., Campbell, Donald T. (Donald Thomas), 1916-1996

    Chicago : Rand McNally College Pub. Co., 1979
    Format: Book


  4. 4

    Experimental and quasi-experimental designs for generalized causal inference by Shadish, William R., Cook, Thomas D., Campbell, Donald T. (Donald Thomas), 1916-1996

    Belmont, CA : Wadsworth Cengage Learning, 2002
    Format: Book


  5. 5

    Experimental and quasi-experimental designs for research by Campbell, Donald T. (Donald Thomas), 1916-1996, Stanley, Julian C.

    Chicago : R. McNally, 1966
    Format: Book


  6. 6

    Quasi-experimental approaches; testing theory and evaluating policy. by Caporaso, James A., 1941-, Roos, Leslie L., Jr., 1940-

    Evanston [Ill.] Northwestern University Press, 1973
    Format: Book