His The planning of change, c1961.

His Why leaders can't lead, 1989: CIP t.p. (Warren Bennis) data sheet (b. 3-8-25)

Widaehan iinjadŭl, 2000: t.p. (Wŏren Benisŭ)

678 field information, Aug. 4, 2014 (Massachusetts Institute of Technology)

New York times (online), viewed Aug. 4, 2014 (in obituary published Aug. 1: Warren G. Bennis; b. Warren Gamaliel Bennis, Mar. 8, 1925, the Bronx; grew up in Westwood, N.J.; d. Thursday [July 31, 2014], Los Angeles, aged 89; lived in Santa Monica, Calif.; eminent scholar and author who advised presidents and business executives on his academic specialty, the essence of successful leadership)

OCLC, 23 Oct. 2018 (hdg.: Bennis, Warren G.; Bennis, Warren G., 1925- ; usage: Warren Bennis; Warren G. Bennis)