APA (7th ed.) Citation

Koontz, H. (1981). A practical introduction to business. Richard D. Irwin.

Chicago Style (17th ed.) Citation

Koontz, Harold. A Practical Introduction to Business. Homewood, Ill.: Richard D. Irwin, 1981.

MLA (9th ed.) Citation

Koontz, Harold. A Practical Introduction to Business. Richard D. Irwin, 1981.