Não informado. (1932). Field and laboratory. Southern Methodist University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Field and Laboratory. Dallas, Tex: Southern Methodist University, 1932.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Field and Laboratory. Southern Methodist University, 1932.
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