APA
Ghysels E., Valkanov Rossen, Santa Clara Pedro & National Bureau Of Economic Research. (2004). There is a risk-return tradeoff after all. Cambridge, MA: NBER.
Chicago
Ghysels Eric, Valkanov Rossen, Santa Clara Pedro and National Bureau Of Economic Research. 2004. There is a risk-return tradeoff after all. Cambridge, MA: NBER.
Harvard
Ghysels E., Valkanov Rossen, Santa Clara Pedro and National Bureau Of Economic Research. (2004). There is a risk-return tradeoff after all. Cambridge, MA: NBER.
MLA
Ghysels Eric, Valkanov Rossen, Santa Clara Pedro and National Bureau Of Economic Research. There is a risk-return tradeoff after all. Cambridge, MA: NBER. 2004.