APA (7 वां संस्करण) प्रशस्ति पत्र
Modi , P. (2010). Soil mechanics and foundation engineering: Geotechnical engineering. Standard Book House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Modi , P.N. Soil Mechanics and Foundation Engineering: Geotechnical Engineering. New Delhi: Standard Book House, 2010.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Modi , P.N. Soil Mechanics and Foundation Engineering: Geotechnical Engineering. Standard Book House, 2010.
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