APA
Campbell J. Y., National Bureau of Economic Research & Sigalov R. (2020). Portfolio choice with sustainable spending. Cambridge: NBER.
Chicago
Campbell John Y, National Bureau of Economic Research and Sigalov Roman. 2020. Portfolio choice with sustainable spending. Cambridge: NBER.
Harvard
Campbell J. Y., National Bureau of Economic Research and Sigalov R. (2020). Portfolio choice with sustainable spending. Cambridge: NBER.
MLA
Campbell John Y, National Bureau of Economic Research and Sigalov Roman. Portfolio choice with sustainable spending. Cambridge: NBER. 2020.