TY - BOOK AU - Shadish,William R. AU - Cook,Thomas D. AU - Campbell,Donald T. TI - Experimental and quasi-experimental designs for generalized causal inference SN - 0395615569 AV - BD591 .S48 2002 U1 - 122/.07/2 21 PY - 2002/// CY - Boston PB - Houghton Mifflin KW - Causation KW - Experiments N1 - Includes bibliographical references (p. 514-591) and indexes UR - http://www.loc.gov/catdir/enhancements/fy1105/2001131551-d.html UR - http://www.loc.gov/catdir/enhancements/fy1105/2001131551-t.html ER -