APA (7th ed.) Citation

George, W. L. (1907). Engines of social progress. A. and C. Black.

Chicago Style (17th ed.) Citation

George, W. L. Engines of Social Progress. London: A. and C. Black, 1907.

MLA (8th ed.) Citation

George, W. L. Engines of Social Progress. A. and C. Black, 1907.

Warning: These citations may not always be 100% accurate.