CED. (1999). Geographic Information system and remote sensing, starting your ARC/INFO project, data input, data editing and verification.
استشهاد بنمط شيكاغوCED. Geographic Information System and Remote Sensing, Starting Your ARC/INFO Project, Data Input, Data Editing and Verification. Trivandrum, Centre for Environment and development (CED), 1999.
MLA استشهادCED. Geographic Information System and Remote Sensing, Starting Your ARC/INFO Project, Data Input, Data Editing and Verification. 1999.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.