Harry Ellis Hershey.
Automatic telephone practice., 5th ed.
R565956. Automatic telephone practice. By Harry Ellis Hershey. 5th ed. © 4Nov46; A8983. Mildred Hershey Robb & Donna E. Hershey (C); 13Dec73; R565956.
Mildred Hershey Robb & Donna E. Hershey|C