Παραπομπή APA

ISI. (1975). Indian standard guide for print area, margin and type sizes for text books Part 1. Indian standards Institution.

Παραπομπή Chicago Style

ISI. Indian Standard Guide for Print Area, Margin and Type Sizes for Text Books Part 1. London: Indian standards Institution, 1975.

Παραπομπή MLA

ISI. Indian Standard Guide for Print Area, Margin and Type Sizes for Text Books Part 1. Indian standards Institution, 1975.