Motion Study : A Method for Increasing the Efficiency of the Workman Side 5, 1911, Gilbreth, Frank B.
Motion Study : A Method for Increasing the Efficiency of the Workman Side 4, 1911, Gilbreth, Frank B.
Motion Study : A Method for Increasing the Efficiency of the Workman Side 3, 1911, Gilbreth, Frank B.
Motion Study : A Method for Increasing the Efficiency of the Workman Side 2, 1911, Gilbreth, Frank B.