ISI. (1975). Indian standard guide for print area, margin and type sizes for text books Part 1. Indian standards Institution.
استشهاد بنمط شيكاغوISI. Indian Standard Guide for Print Area, Margin and Type Sizes for Text Books Part 1. London: Indian standards Institution, 1975.
MLA استشهادISI. Indian Standard Guide for Print Area, Margin and Type Sizes for Text Books Part 1. Indian standards Institution, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.