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Happiness and smile. (1969, December 31). In MegaEssays.com. Retrieved 02:44, April 20, 2024, from https://www.megaessays.com/viewpaper/29141.html
MegaEssays. "Happiness and smile." MegaEssays.com. MegaEssays.com, (December 31, 1969). Web. 20 Apr. 2024.
MegaEssays, "Happiness and smile.," MegaEssays.com, https://www.megaessays.com/viewpaper/29141.html (accessed April 20, 2024)