Gaya APA

Koontz, Harold. (1981). A practical introduction to business (3rd ed.). Homewood, Illinois: Richard D. Irwin, Inc..

Gaya Chicago

Koontz, Harold. A practical introduction to business. 3rd ed. Homewood, Illinois: Richard D. Irwin, Inc., 1981. Text.

Gaya MLA

Koontz, Harold. A practical introduction to business. 3rd ed. Homewood, Illinois: Richard D. Irwin, Inc., 1981. Text.

Gaya Turabian

Koontz, Harold. A practical introduction to business. 3rd ed. Homewood, Illinois: Richard D. Irwin, Inc., 1981. Print.