United States Government Printing Office, Style Board. (1968). Word Division. Supplement to Government Printing Office Style Manual (7. Aufl.).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रUnited States Government Printing Office, Style Board. Word Division. Supplement to Government Printing Office Style Manual. 7. Aufl. Washington, 1968.
एमएलए (8वां संस्करण) प्रशस्ति पत्रUnited States Government Printing Office, Style Board. Word Division. Supplement to Government Printing Office Style Manual. 7. Aufl. 1968.
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