Gaya APA
PRESTON, P., Zimmerer, T. (1976).
BUSINESS: AN INTRODUCTION TO AMERICAN ENTERPRISE .
Englewood Cliffs, N J.:
PRENTICE HALL.
Gaya MLA
PRESTON, Paul., Zimmerer, Thomas.
"BUSINESS: AN INTRODUCTION TO AMERICAN ENTERPRISE".
Englewood Cliffs, N J.:
PRENTICE HALL,
1976.
Textbook.