Early Friends Family of Upper Bucks County, PennsylvaniaClarence V. Roberts · First published 2019Open the Tome
Practical Locomotive OperatingClarence Roberts, Russell Moore Smith · First published 1913 · Latest edition 2018Open the Tome
Early Friends Families of Upper Bucks with Some Account of Their DescendantsClarence V. Roberts · First published 2001Open the Tome
Early Friends Families of Upper BucksClarence V. Roberts · First published 1975 · Latest edition 2000Open the Tome
A history of the firebrick and refractories industry in MissouriClarence Nelson Roberts · First published 1950Open the Tome
History of the University of Missouri School of Mines and Metallurgy, 1871-1946Clarence N. Roberts · First published 1946Open the Tome
The defense of the proclamation line of 1763 in North America, 1763-1775Clarence W Roberts · First published 1931Open the Tome
The universal passionEdward Young, James Roberts, Clarence S. Bement · First published 1725Open the Tome
