Gaya APA
Introduction to Business. (1967).
Cincinnati:
South-Western Publishing Company.
Gaya Chicago
Introduction to Business.
ed.6.
Cincinnati:
South-Western Publishing Company,
1967.
.
Gaya MLA
Introduction to Business.
ed.6.
Cincinnati:
South-Western Publishing Company,
1967.
.
Gaya Turabian
Introduction to Business.
Cincinnati:
South-Western Publishing Company,
1967.
.