Potter, P. (2012). Human minus Three Pieces of Hair. Centers for Disease Control and Prevention.
Cita Chicago (17th ed.)Potter, Polyxeni. Human Minus Three Pieces of Hair. Centers for Disease Control and Prevention, 2012.
Cita MLA (9th ed.)Potter, Polyxeni. Human Minus Three Pieces of Hair. Centers for Disease Control and Prevention, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.