Bittel, L. R. (1990). What every supervisor should know (6th ed.). McGraw-Hill Publishing Co.
Čikaški stil citiranja (17. izdanje)Bittel, Lester R. What Every Supervisor Should Know. 6th ed. New York: McGraw-Hill Publishing Co, 1990.
MLA način citiranja (9. izdanje)Bittel, Lester R. What Every Supervisor Should Know. 6th ed. McGraw-Hill Publishing Co, 1990.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.