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Social theory and social structure
Merton, Robert King, (1957)
Merton, Robert King, (1968)
Psychology and social change
Pizer, Stuart A., (1975)
The dynamics of planned change : a comparative study of principles and techniques
Lippitt, Ronald, (1958)
The process of utilization of social research to improve social practice
Lippitt, Ronald, (2010)
Dimensions of the consultant's job