Potter, P. (2012). Human minus Three Pieces of Hair. Centers for Disease Control and Prevention.
Lua i Stíl Chicago (17ú heag.)Potter, Polyxeni. Human Minus Three Pieces of Hair. Centers for Disease Control and Prevention, 2012.
Lua MLA (9ú heag.)Potter, Polyxeni. Human Minus Three Pieces of Hair. Centers for Disease Control and Prevention, 2012.
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