APA
Waldfogel J., . (1999). Preference externalities : an empirical study of who benefits whom in differentiated product markets. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Waldfogel Joel, . 1999. Preference externalities : an empirical study of who benefits whom in differentiated product markets. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Waldfogel J., . (1999). Preference externalities : an empirical study of who benefits whom in differentiated product markets. Cambridge, Mass: National Bureau of Economic Research.
MLA
Waldfogel Joel, . Preference externalities : an empirical study of who benefits whom in differentiated product markets. Cambridge, Mass: National Bureau of Economic Research. 1999.