APA
British Institute of Management, British Institute of Management, . (1949). Indices of productivity. : .
Chicago
British Institute of Management, British Institute of Management, . 1949. Indices of productivity. : .
Harvard
British Institute of Management, British Institute of Management, . (1949). Indices of productivity. : .
MLA
British Institute of Management, British Institute of Management, . Indices of productivity. : . 1949.
