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by Gilbreth, Frank B., Jr.
by Gilbreth, Frank B.
by Gilbreth, Frank B.; Chambers, Roger
by Gilbreth, Frank B.; Gilbreth, Lillian M., Ph.D.
by Gilbreth Frank B
by Gilbreth, Frank B.; Carey, Ernestine Gilbreth
by Frank B. Gilbreth; Ernestine Gilbreth Carey