Cita APA (7th ed.)
Campbell, D. T., Stanley, J. C., & Gage, N. L. (1963). Experimental and quasi-experimental designs for research. R. McNally.
Cita Chicago (17th ed.)
Campbell, Donald Thomas, Julian C. Stanley, i N. L. Gage. Experimental and Quasi-experimental Designs for Research. Chicago: R. McNally, 1963.
Cita MLA (9th ed.)
Campbell, Donald Thomas, et al. Experimental and Quasi-experimental Designs for Research. R. McNally, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.