Não informado. (1972). Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project.
Chicago-Zitierstil (17. Ausg.)Não informado. Evaluation. Minneapolis, Minn: Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
MLA-Zitierstil (8. Ausg.)Não informado. Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.