Gaya APA

Koontz, H., Fulmer, R, M. (1981). A Practical Introduction To Business (Ed. 1). Amerika Serikat: Richard D. Irwin, inc.

Gaya MLA

Koontz, Harold., Fulmer, Robert, M.. "A Practical Introduction To Business". Ed. 1 Amerika Serikat: Richard D. Irwin, inc, 1981. Text.