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"3"(PDF). U.S. Government Publishing Office Style Manual (in ஆங்கிலம்) (2016 ed.). U.S. Government Publishing Office. 2016. p. 32. ISBN978-0-16-093601-2. Archived(PDF) from the original on July 29, 2018. Retrieved July 29, 2018.
"3"(PDF). U.S. Government Publishing Office Style Manual (in ஆங்கிலம்) (2016 ed.). U.S. Government Publishing Office. 2016. p. 32. ISBN978-0-16-093601-2. Archived(PDF) from the original on July 29, 2018. Retrieved July 29, 2018.