Cita APA (7a ed.)

e.V, B. d. D. B. (2021). Books and the book trade in figures, 2013. Frankfurter Buchmesse.

Cita Chicago Style (17a ed.)

e.V, Börsenverein des Deutschen Buchhandels. Books and the Book Trade in Figures, 2013. Frankfurter Buchmesse, 2021.

Cita MLA (8a ed.)

e.V, Börsenverein des Deutschen Buchhandels. Books and the Book Trade in Figures, 2013. Frankfurter Buchmesse, 2021.