United States Authors Series

PW, July 3, 1961, at 178-179 (announcing first five titles in Twayne's hardcover United States Authors Series).

College and University Press Publishes First Books, PW, Mar. 12 1962, at 37 (announcing the first publishing project of the new College and University Press as softcover editions of Twayne's United States Authors Series, distributed by Twayne itself).

Ad, PW, Mar. 26, 1962, at 13 (listing the first ten titles in the softcover United States Authors Series).