Strassburger, R. B. (1934). Pennsylvania German Pioneers. Pennsylvania German Soc..
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रStrassburger, Ralph Beaver. Pennsylvania German Pioneers. Norristown, Penns.: Pennsylvania German Soc., 1934.
एमएलए (8वां संस्करण) प्रशस्ति पत्रStrassburger, Ralph Beaver. Pennsylvania German Pioneers. Pennsylvania German Soc., 1934.
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