Shadish Junior,, William Foundations of program evaluation : theories of practice / William R. Shadish, Jr., Thomas D. Cook, Laura C. Leviton

Foundations of program evaluation : theories of practice / William R. Shadish, Jr., Thomas D. Cook, Laura C. Leviton . - Newbury Park : Sage, cop. 1991 . - 529 p. 23 cm
0-8039-5301-1 (Brochado)

364