Source:Frontier Hendricks Association. Frontier Hendricks = A Working Paper of the Frontier Hendricks Association = Dorothy N. Lloyd Memorial Hendricks
Frontier Hendricks Association, and John Scott Davenport. The Frontier Hendricks = A working paper of the Frontier Hendricks Association = Dorothy N. Lloyd Memorial Hendricks Research. (Dunellen, New Jersey: J.S. Davenport, c1991-1994).