(1997). 1997 Harvard Business School core collection: An author, title, and subject guide. Boston: Harvard Business School.
استشهاد بنمط شيكاغو1997 Harvard Business School Core Collection: An Author, Title, and Subject Guide. Boston: Harvard Business School, 1997.
MLA استشهاد1997 Harvard Business School Core Collection: An Author, Title, and Subject Guide. Boston: Harvard Business School, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.