Campbell, D. T. 1., Stanley, J. C., & Gage, N. L. (1963). Experimental and quasi-experimental designs for research. R. McNally.
Citace podle Chicago (17th ed.)Campbell, Donald Thomas 1916, Julian C. Stanley, a Nathaniel Lees Gage. Experimental and Quasi-experimental Designs for Research. Chicago: R. McNally, 1963.
Citace podle MLA (9th ed.)Campbell, Donald Thomas 1916, et al. Experimental and Quasi-experimental Designs for Research. R. McNally, 1963.
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