Campbell, D. T., Stanley, J. C., & Gage, N. L. (1963). Experimental and quasi-experimental designs for research. R. McNally.
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Citación estilo Chicago
Campbell, Donald Thomas, Julian C. Stanley, and N. L. Gage. Experimental and Quasi-experimental Designs for Research. Chicago: R. McNally, 1963.
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Cita MLA
Campbell, Donald Thomas, et al. Experimental and Quasi-experimental Designs for Research. R. McNally, 1963.
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