Channel changes of the Gila River in Safford Valley, Arizona, 1846-1970, by D. E. Burkham.D. Burkham1972
Samuel J. Tilden Unmasked! By Benjamin E. Buckman, Late Sergeant in the Metropolitan Police.Benjamin Buckman1876
Three pine release experiments in northern Minnesota / Robert E. Buckman, Allen L. Lundgren.Robert Buckman1962