Ernst, L. C. (2011). How things work in the yard. Blue Apple Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रErnst, Lisa Campbell. How Things Work in the Yard. Maplewood, NJ: Blue Apple Books, 2011.
एमएलए (8वां संस्करण) प्रशस्ति पत्रErnst, Lisa Campbell. How Things Work in the Yard. Blue Apple Books, 2011.
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