Nolan, J., & Gonzalez, T. (2016). Seven and a half tons of steel (First edition.). Peachtree Publishers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNolan, Janet, और Thomas Gonzalez. Seven and a Half Tons of Steel. First edition. Atlanta, Georgia: Peachtree Publishers, 2016.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNolan, Janet, और Thomas Gonzalez. Seven and a Half Tons of Steel. First edition. Peachtree Publishers, 2016.
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