Calkins, R. M. (1981). Antitrust Guidelines for the Business Executive. Dow Jones- Irwin.
Chicago Style (17. basım) AtıfCalkins, Richard M. Antitrust Guidelines for the Business Executive. Homewood Ill: Dow Jones- Irwin, 1981.
MLA (9th ed.) AtıfCalkins, Richard M. Antitrust Guidelines for the Business Executive. Dow Jones- Irwin, 1981.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..