THE CONCEPTUAL REPRESENTATATION AND THE MEASUREMENT OF PSYCHOLOGICAL FORCES
LEWIN, KURT.
THE CONCEPTUAL REPRESENTATATION AND THE MEASUREMENT OF PSYCHOLOGICAL FORCES - NEW YORK DUKE UNIVERSITY PRESS 1938
155.4 LEW
THE CONCEPTUAL REPRESENTATATION AND THE MEASUREMENT OF PSYCHOLOGICAL FORCES - NEW YORK DUKE UNIVERSITY PRESS 1938
155.4 LEW