Ahmavaara, Yrjo - The Cybernetic Theory of Development : Mathematical Models for a Re-evaluation of the Is-ought Problem

Helsinki, Tammi, 1974. orig.cloth, dustwrapper.. 24x15cm, 221 pp. Name on flyleaf. Small light stain to side page-edge. One page has some pencilled marginal notes.. Some rubbing. Good. In a chipped, torn & rubbed dustwrapper.