Glottolog . http://www.glottolog.org/glottolog/

An Introduction to Wampanoag Grammar . Jessie L. D. Fermino (2000) ·

Ethnologue: Languages of the World, 18th Edition . (2015) · edited by Lewis, M. Paul, Gary F. Simons, and Charles D. Fennig · SIL International http://www.ethnologue.com

Native Writings in Massachusett, Volume 1 and 2 . Goddard, Ives and Bragdon, Kathleen (1988) · American Philosophical Society

Natick Dictionary . Trumbull, James Hammond (1903) · Government Printing Office