Oegema, G. S. (1998). The uses of the shield of David: On heraldic seals and flags, on bible manuscripts, printer's marks and ex libris / Gerbern S. Oegema. Jewish Studies Quarterly.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रOegema, Gerbern S. "The Uses of the Shield of David: On Heraldic Seals and Flags, on Bible Manuscripts, Printer's Marks and Ex Libris / Gerbern S. Oegema." Jewish Studies Quarterly 1998.
एमएलए (8वां संस्करण) प्रशस्ति पत्रOegema, Gerbern S. "The Uses of the Shield of David: On Heraldic Seals and Flags, on Bible Manuscripts, Printer's Marks and Ex Libris / Gerbern S. Oegema." Jewish Studies Quarterly, 1998.
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