Não informado. (2020). Proceedings of the Scientific Section of the Toilet Goods Association. Toilet Goods Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the Scientific Section of the Toilet Goods Association. Washington: Toilet Goods Association, 2020.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Proceedings of the Scientific Section of the Toilet Goods Association. Toilet Goods Association, 2020.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.