Clark, D. (1951). Plane and geodetic surveying for engineers. V.2: Higher surveying (4.). Constable & Company Ltd.
শিকাগো স্টাইলে সাইটেশনClark, David. Plane and Geodetic Surveying for Engineers. V.2: Higher Surveying. 4. London: Constable & Company Ltd, 1951.
এমএলএ সাইটেশনClark, David. Plane and Geodetic Surveying for Engineers. V.2: Higher Surveying. 4. Constable & Company Ltd, 1951.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.