Jacoby, G. W. (1914). Child training as an exact science: A treatise based upon the principles of modern philosophy, normal and abnormal. Funk & Wagnalls.

Jacoby, George W. Child Training as an Exact Science: A Treatise Based upon the Principles of Modern Philosophy, Normal and Abnormal. New York [u.a.]: Funk & Wagnalls, 1914.

Jacoby, George W. Child Training as an Exact Science: A Treatise Based upon the Principles of Modern Philosophy, Normal and Abnormal. Funk & Wagnalls, 1914.