Gaya APA

Koontz, H., Fulmen, R, M. (1981). A Practical Introduction to Business (Weeding) (Third-Ed). USA: Richard D Irwin, Inc..

Gaya MLA

Koontz, Harold., Fulmen, Robert, M. "A Practical Introduction to Business (Weeding)". Third-Ed USA: Richard D Irwin, Inc., 1981. Text.