Yerkes, L. (2003). Beans: Four principles for running a business in good times or bad,A business fable taken from real life. San Francisco: John Wiley & Sons.
استشهاد بنمط شيكاغوYerkes, Leslie. Beans: Four Principles for Running a Business in Good Times or Bad,A Business Fable Taken From Real Life. San Francisco: John Wiley & Sons, 2003.
MLA استشهادYerkes, Leslie. Beans: Four Principles for Running a Business in Good Times or Bad,A Business Fable Taken From Real Life. San Francisco: John Wiley & Sons, 2003.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.