12.
15.
Conestoga Six-Horse Bell Teams of Eastern Pennsylvania, 1750-1850 : 3rd Edition
by Omwake, John
ISBN: 9798888191323
List Price: $19.95
17.
The Conestoga Six-horse Bell Teams of Eastern Pennsylvania
by Omwake, John 1885-
ISBN: 9781013684258
18.
The Conestoga Six-horse Bell Teams of Eastern Pennsylvania
by Omwake, John 1885-
ISBN: 9781013443183