APA
Hallock K. F., Olson Craig A & National Bureau Of Economic Research. (2006). The value of stock options to non-executive employees. Cambridge, MA: NBER.
Chicago
Hallock Kevin F, Olson Craig A and National Bureau Of Economic Research. 2006. The value of stock options to non-executive employees. Cambridge, MA: NBER.
Harvard
Hallock K. F., Olson Craig A and National Bureau Of Economic Research. (2006). The value of stock options to non-executive employees. Cambridge, MA: NBER.
MLA
Hallock Kevin F, Olson Craig A and National Bureau Of Economic Research. The value of stock options to non-executive employees. Cambridge, MA: NBER. 2006.