Tolman, W. H. (1909). Social engineering: A record of things done by American industrialists employing upwards of one and one-half million of people. McGraw pub. co..

Tolman, William Howe. Social Engineering: A Record of Things Done by American Industrialists Employing Upwards of One and One-half Million of People. New York: McGraw pub. co., 1909.

Tolman, William Howe. Social Engineering: A Record of Things Done by American Industrialists Employing Upwards of One and One-half Million of People. McGraw pub. co., 1909.