एपीए उद्धरण

Donald A. Ball. (2008). International business: The challenge of global competition. Boston: McGraw-Hill Irwin.

शिकागो स्टाइल उद्धरण

Donald A. Ball. International Business: The Challenge of Global Competition. Boston: McGraw-Hill Irwin, 2008.

एमएलए उद्धरण

Donald A. Ball. International Business: The Challenge of Global Competition. Boston: McGraw-Hill Irwin, 2008.