APA (7th ed.) Zitazioa
Bremmer, R. H. (2009). An introduction to Old Frisian: History, grammar, reader, glossary. John Benjamins Pub. Co..
Chicago Style (17th ed.) Zitazioa
Bremmer, Rolf H. An Introduction to Old Frisian: History, Grammar, Reader, Glossary. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 2009.
MLA (9th ed.) Zitazioa
Bremmer, Rolf H. An Introduction to Old Frisian: History, Grammar, Reader, Glossary. John Benjamins Pub. Co., 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.