APA (7 वां संस्करण) प्रशस्ति पत्र

Warr, J., & Trotter, H. (2023). Notes on the comparative economic cost of wood and metal sleepers in India, and cost of treatment. Central Publication Branch, Government of India. [img].

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Warr, J.H, और H. Trotter. Notes on the Comparative Economic Cost of Wood and Metal Sleepers in India, and Cost of Treatment. Central Publication Branch, Government of India. [img], 2023.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Warr, J.H, और H. Trotter. Notes on the Comparative Economic Cost of Wood and Metal Sleepers in India, and Cost of Treatment. Central Publication Branch, Government of India. [img], 2023.

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