Fuchs, E. To live on this earth, 1983 CIP t.p. (Robert J. Havighurst)
Wikipedia, Mar. 31, 2010 (Robert J. Havighurst; Robert James Havighurst (b. June 5, 1900, De Pere, Wis., d. Jan. 31, 1991, Richmond, Ind.); professor, physicist, educator, and aging expert)
LC in OCLC, Mar. 31, 2010 (hdg.: Havighurst, Robert James, 1900- ; usage: Robert J. Havighurst; R.J. Havighurst)