Bremmer, R. H. (2009). An introduction to Old Frisian: History, grammar, reader, glossary. John Benjamins Pub. Co..
芝加哥风格引文Bremmer, Rolf H. An Introduction to Old Frisian: History, Grammar, Reader, Glossary. Amsterdam ; Philadelphia: John Benjamins Pub. Co., 2009.
MLA引文Bremmer, Rolf H. An Introduction to Old Frisian: History, Grammar, Reader, Glossary. John Benjamins Pub. Co., 2009.
警告：这些引文格式不一定是100％准确.