Não informado. (1972). Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Evaluation. Minneapolis, Minn: Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Evaluation. Minneapolis Medical Research Foundation, Program Evaluation Project, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.