Harrell, A. (1996). Evaluating programs for vulnerable children and youth. Banco Mundial.
Cita Chicago (17th ed.)Harrell, Adele. Evaluating Programs for Vulnerable Children and Youth. [s.l.]: Banco Mundial, 1996.
Cita MLA (9th ed.)Harrell, Adele. Evaluating Programs for Vulnerable Children and Youth. Banco Mundial, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.