APA
Bodnar G. M., Gebhardt G., . (1998). Derivatives usage in risk management by U.S. and German non-financial firms : a comparitive survey. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Bodnar Gordon M, Gebhardt Gunther, . 1998. Derivatives usage in risk management by U.S. and German non-financial firms : a comparitive survey. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Bodnar G. M., Gebhardt G., . (1998). Derivatives usage in risk management by U.S. and German non-financial firms : a comparitive survey. Cambridge, Mass: National Bureau of Economic Research.
MLA
Bodnar Gordon M, Gebhardt Gunther, . Derivatives usage in risk management by U.S. and German non-financial firms : a comparitive survey. Cambridge, Mass: National Bureau of Economic Research. 1998.