APA (7 वां संस्करण) प्रशस्ति पत्र

Nirmala, V. (1992). Economic analysis of rice cultivation: A study of Tamil Nadu. Concept Pub. Co..

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Nirmala, V. Economic Analysis of Rice Cultivation: A Study of Tamil Nadu. New Delhi: Concept Pub. Co., 1992.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Nirmala, V. Economic Analysis of Rice Cultivation: A Study of Tamil Nadu. Concept Pub. Co., 1992.