"Hein Online." . . . . . . . . . . . . . "A treatise on the law of telegraph and telephone companies including electric law"@en . "A treatise on the law of telegraph and telephone companies : including electric law" . "Telegraph and telephone companies"@en . . . "A treatise on the law of telegraph and telephone companies" . "A treatise on the law of telegraph and telephone companies"@en . . . "Law of telegraph and telephone companies"@en . . . . . .