Campbell, D. T. (1966). Experimental and quasi - experimental designs for research. Rand Menally.
Chicago Style CitationCampbell, Donald T. Experimental and Quasi - Experimental Designs for Research. Rand Menally, 1966.
MLA CitationCampbell, Donald T. Experimental and Quasi - Experimental Designs for Research. Rand Menally, 1966.
Warning: These citations may not always be 100% accurate.