KOPP, MARION MAY DILTS.
The telephone in a changing world, by Marion May Dilts.
KOPP, MARION MAY DILTS. The telephone in a changing world, by Marion May Dilts. © 23Apr41; A153072. Marion May Dilts (Mrs. Paul J. Kopp) (A); 31Jan69; R454973.
Marion May Dilts|Mrs. Paul J. Kopp|||A