Clampitt, P. G., & Berk, L. (1993). Student workbook for communicating for managerial effectiveness. Sage.
استشهاد بنمط شيكاغوClampitt, Philip G., و Laurey Berk. Student Workbook for Communicating for Managerial Effectiveness. California: Sage, 1993.
MLA استشهادClampitt, Philip G., و Laurey Berk. Student Workbook for Communicating for Managerial Effectiveness. Sage, 1993.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.