Thrift, Tim, 1883- Business letters, how to write them / [electronic resource] / by Tim Thrift, Benjamin J. Campbell, and Bruce L. Vass.. — Jackson, Mich. : : Business English Pub. Co.,, c1916.. — 125 p. : : ill. ; 20 cm. Subjects--Topical Terms: Commercial correspondence. LC Class. No.: HF5726 / .T5