Rutman, Leonard (Ed.)
Evaluation Research Methods : A Basic Guide. - Sage 1977 - 241 P. 22 CM.
SAGE FOCUS EDITIONS ; V.3
803909071
361.61072 EVA 1977
Evaluation Research Methods : A Basic Guide. - Sage 1977 - 241 P. 22 CM.
SAGE FOCUS EDITIONS ; V.3
803909071
361.61072 EVA 1977