TY  - BOOK
AU  - Mundel, Marvine E.
TI  - Motion and time study: principles and practices 
U1  - 658.542 
PY  - 1950///
CY  - New York 
PB  - Printice Hall 
KW  - Motion and time
KW  - Reasioning processs
N1  - Includes bibliographical references and index
ER  -