A historical and etymological dictionary of American Sign Language : the origin and evolution of more than 500 signs
Emily Shaw (Author), Yves Delaporte (Author)
"Utilizing 1150 sign illustrations and historical texts, this reference presents a detailed account of the origins of more than 500 ASL signs, including regional variations"-- Provided by publisher
eBook, English, 2015
Gallaudet University Press, Washington, DC, 2015