Gibbons, J. (1870). Circular: To the Officers and Members of the F.B., February 28, 1870.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGibbons, James. Circular: To the Officers and Members of the F.B., February 28, 1870. 1870.
एमएलए (8वां संस्करण) प्रशस्ति पत्रGibbons, James. Circular: To the Officers and Members of the F.B., February 28, 1870. 1870.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.