Freeman, F. H., Knott, K. B., & Schwartz, M. K. (1996). Leadership education 1996-1997: A source book (6th ed.). Center for Creative Leadership.
Chicago Style aipamenaFreeman, Frank H., Katherine B. Knott, and Mary K. Schwartz. Leadership Education 1996-1997: A Source Book. 6th ed. Greensboro, N.C.: Center for Creative Leadership, 1996.
MLA aipamenaFreeman, Frank H., et al. Leadership Education 1996-1997: A Source Book. 6th ed. Center for Creative Leadership, 1996.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.