American Dialects : a manual for actors, directors, and writers
by
Lewis Herman; Marguerite S. Herman
Foreign dialects : a manual for actors, directors, and writers
by
Lewis Herman and Marguerite Shalett Herman
Dictionary of American regional English (DARE)
by
Joan Houston Hall, chief editor.
Dictionary of Jamaican English
by
Frederic Gomes Cassidy; R.B Le Page