Quanbeck, H. J. (1988). Lest we forget the men of the railway mail service. H.J. Quanbeck.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रQuanbeck, H. J. Lest We Forget the Men of the Railway Mail Service. [Spokane, WA: H.J. Quanbeck, 1988.
एमएलए (8वां संस्करण) प्रशस्ति पत्रQuanbeck, H. J. Lest We Forget the Men of the Railway Mail Service. H.J. Quanbeck, 1988.
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