APA (7th ed.) Citation

Greenhalgh, C., & Schautschick, P. (2013). Empirical studies of trade marks - the existing economic literature. University of Oxford.

Chicago Style (17th ed.) Citation

Greenhalgh, C., and P. Schautschick. Empirical Studies of Trade Marks - the Existing Economic Literature. University of Oxford, 2013.

MLA (9th ed.) Citation

Greenhalgh, C., and P. Schautschick. Empirical Studies of Trade Marks - the Existing Economic Literature. University of Oxford, 2013.

Warning: These citations may not always be 100% accurate.