Kothen, R. (1937). Catholic Action and the Young Christian Workers Movement. Liverpool.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKothen, Robert. Catholic Action and the Young Christian Workers Movement. Liverpool, 1937.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKothen, Robert. Catholic Action and the Young Christian Workers Movement. Liverpool, 1937.
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