APA (7th ed.) Citation

Boutkan, D., & Siebenga, S. M. (2005). Old Frisian etymological dictionary. Brill.

Chicago Style (17th ed.) Citation

Boutkan, Dirk, and Sjoerd Michiel Siebenga. Old Frisian Etymological Dictionary. Leiden: Brill, 2005.

MLA (9th ed.) Citation

Boutkan, Dirk, and Sjoerd Michiel Siebenga. Old Frisian Etymological Dictionary. Brill, 2005.

Warning: These citations may not always be 100% accurate.