Frisian language/Bibliography


 * Horst Haider Munske ed. 2001. Handbuch des Friesischen/Handbook of Frisian Studies. Tübingen: Max Niemeyer. ISBN 348473048X
 * Pieter M. Tiersma. 1999. Frisian Reference Grammar. 2nd ed. Leeuwarden: n.p. (1st ed. 1985. Dordrecht: Foris)