Experimental and quasi - experimental designs for generalized causal inference
"Shadish, William R"
Experimental and quasi - experimental designs for generalized causal inference - 0 - USA Wadsworth Cengage Learning c2002 - "xxi,621p. : ill. ;23cm."
includes bibliographical references and index
9780395615560
Experimental and quasi - experimental designs for generalized causal inference - 0 - USA Wadsworth Cengage Learning c2002 - "xxi,621p. : ill. ;23cm."
includes bibliographical references and index
9780395615560