Indian Standards Institution. (1969). Indian Standard: Specification for Low Density Polyethylene Pipes for Potable water Supplies. Indian Standards Institution.
शिकागो स्टाइल उद्धरणIndian Standards Institution. Indian Standard: Specification for Low Density Polyethylene Pipes for Potable Water Supplies. N.Delhi: Indian Standards Institution, 1969.
एमएलए उद्धरणIndian Standards Institution. Indian Standard: Specification for Low Density Polyethylene Pipes for Potable Water Supplies. Indian Standards Institution, 1969.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.