APA
Duffie D., Wang Ke & National Bureau Of Economic Research. (2004). Multi-period corporate failure prediction with stochastic covariates. Cambridge, MA: NBER.
Chicago
Duffie Darrell, Wang Ke and National Bureau Of Economic Research. 2004. Multi-period corporate failure prediction with stochastic covariates. Cambridge, MA: NBER.
Harvard
Duffie D., Wang Ke and National Bureau Of Economic Research. (2004). Multi-period corporate failure prediction with stochastic covariates. Cambridge, MA: NBER.
MLA
Duffie Darrell, Wang Ke and National Bureau Of Economic Research. Multi-period corporate failure prediction with stochastic covariates. Cambridge, MA: NBER. 2004.