Peckhaus, V. (2014). Ernst Schröder on pasigraphy.
Style de citation Chicago (17e éd.)Peckhaus, Volker. Ernst Schröder on Pasigraphy. 2014.
Style de citation MLA (8e éd.)Peckhaus, Volker. Ernst Schröder on Pasigraphy. 2014.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.