Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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