APA
Beach B. e. a., National Bureau of Economic Research, . (2014). Typhoid fever, water quality, and human capital formation. Cambridge: NBER.
Chicago
Beach Brian et al, National Bureau of Economic Research, . 2014. Typhoid fever, water quality, and human capital formation. Cambridge: NBER.
Harvard
Beach B. e. a., National Bureau of Economic Research, . (2014). Typhoid fever, water quality, and human capital formation. Cambridge: NBER.
MLA
Beach Brian et al, National Bureau of Economic Research, . Typhoid fever, water quality, and human capital formation. Cambridge: NBER. 2014.