Tohutoro APA (7th ed.)
Varghese, P. (2011). Building materials. PHI.
Tohutoru Kātū Chicago (17th ed.)
Varghese, P.C. Building Materials. New Delhi: PHI, 2011.
Tohutoro MLA (9th ed.)
Varghese, P.C. Building Materials. PHI, 2011.
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