Não informado. (1958). The Journal of the American Academy of Gold Foil Operators. American Academy of Gold Foil Operators.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of the American Academy of Gold Foil Operators. Indianapolis, Ind: American Academy of Gold Foil Operators, 1958.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. The Journal of the American Academy of Gold Foil Operators. American Academy of Gold Foil Operators, 1958.
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