Institution of civil engineers. (1981). Appropriate technology in civil engineering: Proceedings of the conferance held by the institution of civil engineers. Thomas telford Ltd.
শিকাগো স্টাইলে সাইটেশনInstitution of civil engineers. Appropriate Technology in Civil Engineering: Proceedings of the Conferance Held by the Institution of Civil Engineers. London: Thomas telford Ltd, 1981.
এমএলএ সাইটেশনInstitution of civil engineers. Appropriate Technology in Civil Engineering: Proceedings of the Conferance Held by the Institution of Civil Engineers. Thomas telford Ltd, 1981.
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