Calkins, M. (2009). Materials for sustainable sites: A complete guide to the evaluation, selection, and use of sustainable construction materials. Wiley.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCalkins, Meg. Materials for Sustainable Sites: A Complete Guide to the Evaluation, Selection, and Use of Sustainable Construction Materials. Hoboken, N.J: Wiley, 2009.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCalkins, Meg. Materials for Sustainable Sites: A Complete Guide to the Evaluation, Selection, and Use of Sustainable Construction Materials. Wiley, 2009.
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