APA način citiranja

Mentrup, W. (1968). Rules of German Orthography. Bibliographisches Institut.

Čikaški stil citiranja

Mentrup, Wolfgang. Rules of German Orthography. Zurich: Bibliographisches Institut, 1968.

MLA način citiranja

Mentrup, Wolfgang. Rules of German Orthography. Bibliographisches Institut, 1968.