Sylvester, L. Arthur
The handbook of advanced time- motion study by L. Arthur Sylvester - New York Funk & Wagnalls 1950 - 273p.
Time- Motion study
T83 Sy57
The handbook of advanced time- motion study by L. Arthur Sylvester - New York Funk & Wagnalls 1950 - 273p.
Time- Motion study
T83 Sy57
