کتاب های Bruce Littlefield
IAAP Handbook of Applied Psychology
Paul R. Martin, Fanny M. Cheung, Michael C. Knowles, Michael Kyrios, Lyn Littlefield, J. Bruce Overmier, Jos? M. Prieto, 2011
The Sell: The Secrets of Selling Anything to Anyone
Fredrik Eklund, Bruce Littlefield, and Barbara Corcoran, 2015
