George W. Hartmann

Industrial and personnel suggestions.

George W. Hartmann, 1935 .

Application to educational problems.

George W. Hartmann, 1935 .

Precision and Accuracy

George W. Hartmann, G. Hartmann, 2014 .

Gestalt Psychology: A Survey of Facts and Principles

George W. Hartmann, J. R. Kantor, G. Hartmann, 1936 .

Principles of Gestalt Psychology.

George W. Hartmann, 1936 .