Morris Llewellyn Cooke, Bulletin No. 5 of the Carnegie Foundation for the Advancement of Teaching, p. 17.

F.W. Taylor, Shop Management, para. 234, Am. Soc. M.E., Paper No. 1003.

F.W. Taylor, Principles of Scientific Management, pp. 33-38.

The idea called to mind by the use of a given word. — Ed.

Henry R. Towne, Introduction to Shop Management. (Harper & Bros.)

F.W. Taylor, Principles of Scientific Management, p. 123. (Harper & Bros.)

Doubleday, Page & Co.