General Psychology in 1952

A Theory of Psychological Scaling by Coombs, Clyde

Childhood Experience and Personal Destiny: A Psychoanalytic Theory of Neurosis by Silverberg, William V.

Besser Leben Mehr Erreichen! by Fervers, Hans

Allgemeine Physiologie by Bethe, Albrecht

Vision Through the Atmosphere by Middleton, W. E. K.