Gaya APA
Sigband, Norman B.. (1986).
Communication for management and business (4th.ed.).
Illinois:
Scott, Foresman and Company.
Gaya Chicago
Sigband, Norman B..
Communication for management and business.
4th.ed.
Illinois:
Scott, Foresman and Company,
1986.
Text.
Gaya MLA
Sigband, Norman B..
Communication for management and business.
4th.ed.
Illinois:
Scott, Foresman and Company,
1986.
Text.
Gaya Turabian
Sigband, Norman B..
Communication for management and business.
4th.ed.
Illinois:
Scott, Foresman and Company,
1986.
Print.