Chapter Helper, Susan; Hochfelder, David (1997)
“Japanese-style” supplier relations in the early American auto industry, 1895--1920. In: Beyond the firm: Business groups in international and historical perspective (pp. 187-214). (/isis/citation/CBB001180025/) unapi

Article Hochfelder, David; Helper, Susan (1996)
Suppliers and product development in the early American automobile industry. Business and Economic History (pp. 39-57). (/isis/citation/CBB000075469/) unapi

Article Hochfelder, David; Helper, Susan (1996)
Suppliers and Product Development in the Early American Automobile Industry. Business and Economic History (pp. 39-51). (/isis/citation/CBB001180023/) unapi