Gaya APA
AURNER, Robert Ray. (1962).
Effective english for business (5th ed.).
Cincinnati:
South-Western Publishing.
Gaya Chicago
AURNER, Robert Ray.
Effective english for business.
5th ed.
Cincinnati:
South-Western Publishing,
1962.
Text.
Gaya MLA
AURNER, Robert Ray.
Effective english for business.
5th ed.
Cincinnati:
South-Western Publishing,
1962.
Text.
Gaya Turabian
AURNER, Robert Ray.
Effective english for business.
5th ed.
Cincinnati:
South-Western Publishing,
1962.
Print.