Filler, L. 1. e. (1964). The anxious years: America in the nineteen thirties; a collection of contemporary writings. Capricorn books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFiller, Louis 1911- ed. The Anxious Years: America in the Nineteen Thirties; a Collection of Contemporary Writings. New York: Capricorn books, 1964.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFiller, Louis 1911- ed. The Anxious Years: America in the Nineteen Thirties; a Collection of Contemporary Writings. Capricorn books, 1964.
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