APA
Kisgen D. J., Strahan Philip E & National Bureau Of Economic Research. (2009). Do regulations based on credit ratings affect a firms cost o. Cambridge: NBER.
Chicago
Kisgen Darren J, Strahan Philip E and National Bureau Of Economic Research. 2009. Do regulations based on credit ratings affect a firms cost o. Cambridge: NBER.
Harvard
Kisgen D. J., Strahan Philip E and National Bureau Of Economic Research. (2009). Do regulations based on credit ratings affect a firms cost o. Cambridge: NBER.
MLA
Kisgen Darren J, Strahan Philip E and National Bureau Of Economic Research. Do regulations based on credit ratings affect a firms cost o. Cambridge: NBER. 2009.
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