Gaya APA
Kallaus, Norman F., Keeling, B. Lewis. (1991).
Administrative office management (10th ed.).
Cincinnati, OH:
South-Western.
Gaya Chicago
Kallaus, Norman F., Keeling, B. Lewis.
Administrative office management.
10th ed.
Cincinnati, OH:
South-Western,
1991.
Text.
Gaya MLA
Kallaus, Norman F., Keeling, B. Lewis.
Administrative office management.
10th ed.
Cincinnati, OH:
South-Western,
1991.
Text.
Gaya Turabian
Kallaus, Norman F., Keeling, B. Lewis.
Administrative office management.
10th ed.
Cincinnati, OH:
South-Western,
1991.
Print.