(1988). POMS, Program Operations Manual System. Part 9, Chapter 007, Subchapter 06, Correspondence, notices and references. Letters and paragraphs for Title II, Title XVIII, and Black Lung. Guide letters for priority correspondence.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPOMS, Program Operations Manual System. Part 9, Chapter 007, Subchapter 06, Correspondence, Notices and References. Letters and Paragraphs for Title II, Title XVIII, and Black Lung. Guide Letters for Priority Correspondence. 1988.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPOMS, Program Operations Manual System. Part 9, Chapter 007, Subchapter 06, Correspondence, Notices and References. Letters and Paragraphs for Title II, Title XVIII, and Black Lung. Guide Letters for Priority Correspondence. 1988.
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