Bradford, Leland P. (Leland Powers), 1905-1981 (Personal Name)
- Earlier heading: Bradford, Leland Powers, 1905-
His The effect of practice upon variability in memory tests ... 1939.
T-group theory and laboratory method, 1964: title page (Leland P. Bradford, Director, National Training Laboratories)
The Washington Post, May 17 1981, accessed online August 18 2017: obituary (Leland P. Bradford; educator and retired director of the National Education Association's National Training Laboratories Institute; born in Chicago on July 12, 1905; earned bachelor's, master's and doctor's degrees from the University of Illinois; died Wednesday [May 13 1981] in Pinehurst, North Carolina) https://www.washingtonpost.com/archive/local/1981/05/17/leland-bradford-dies/3d2b5812-675c-4b14-8854-b4e4f6aaccd9