Harrison, R.Some criteria for choosing the depth of organizational intervention strategy. Group Psychotherapy Separatum, Fourth International Congress of Group Psychotherapy, Vienna, Austria, September 16, 1968.
2.
Nylen, D., Mitchell, J. R., & Stout, A.Handbook of staff development and human relations training: Materials developed for use in Africa. Washington, D.C.: NTL Institute for Applied Behavioral Science, 1967.