Social research methods
Eckhardt, K.W., David Ermann, M.
Social research methods Perspective theory & analysis by K.W. Eckhardt & M. David Ermann - New York Random House 1977 - 410 pp.
Social research
300(072) / E 19 S
Social research methods Perspective theory & analysis by K.W. Eckhardt & M. David Ermann - New York Random House 1977 - 410 pp.
Social research
300(072) / E 19 S