Cole, S. L. (1984). A solar collection: Projects funded by the Appropriate Technology Small Grants Program. Washington State Energy Office.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCole, Sandra L. A Solar Collection: Projects Funded by the Appropriate Technology Small Grants Program. Olympia, WA: Washington State Energy Office, 1984.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCole, Sandra L. A Solar Collection: Projects Funded by the Appropriate Technology Small Grants Program. Washington State Energy Office, 1984.
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