Bertoline, G. R. (2009). Graphics drawing workbook to accompany technical graphics communication and fundamentals ò graphics communication (2nd ed.). Boston: McGraw-Hill Higher Education.
استشهاد بنمط شيكاغوBertoline, Gary R. Graphics Drawing Workbook to Accompany Technical Graphics Communication and Fundamentals ò Graphics Communication. 2nd ed. Boston: McGraw-Hill Higher Education, 2009.
MLA استشهادBertoline, Gary R. Graphics Drawing Workbook to Accompany Technical Graphics Communication and Fundamentals ò Graphics Communication. 2nd ed. Boston: McGraw-Hill Higher Education, 2009.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.