Ratan, V. (1988). Multiple choice questions in preventive and social medicine. (3rd ed.). New Delhi.
Chicago Edition CitationRatan, Vidya. Multiple Choice Questions in Preventive and Social Medicine. 3rd ed. Jaypee Brothers: New Delhi, 1988.
MLA Edition CitationRatan, Vidya. Multiple Choice Questions in Preventive and Social Medicine. 3rd ed. New Delhi, 1988.
Warning: These citations may not always be 100% accurate.