U.S. Copyright Renewals 1950 - 1977
Chapter 5
THE ANNOUNCEMENT, by Eda S. Doench. (725) © 22Jun23, K176192. R64076, 14Jul50, Gutmann & Gutmann, inc. (PWH)
ANN'S AN IDIOT, by Pamela Wynne [Mrs. Herbert Scott] © 18Sep23, A760012. R69626, 6Nov50, Mrs. Herbert Scott (A)
ANSWERS TO PROBLEMS IN TECHNICAL MATHEMATICS