APA
Turrell A. e. a., National Bureau of Economic Research, . (2019). Transforming naturally occurring text data Into economic statistics. Cambridge: NBER.
Chicago
Turrell Arthur et al, National Bureau of Economic Research, . 2019. Transforming naturally occurring text data Into economic statistics. Cambridge: NBER.
Harvard
Turrell A. e. a., National Bureau of Economic Research, . (2019). Transforming naturally occurring text data Into economic statistics. Cambridge: NBER.
MLA
Turrell Arthur et al, National Bureau of Economic Research, . Transforming naturally occurring text data Into economic statistics. Cambridge: NBER. 2019.