Lane, J. M. (2011). Remaining Questions about Clinical Variola Major. Centers for Disease Control and Prevention.
Citação norma ChicagoLane, J. Michael. Remaining Questions About Clinical Variola Major. Centers for Disease Control and Prevention, 2011.
MLA引文Lane, J. Michael. Remaining Questions About Clinical Variola Major. Centers for Disease Control and Prevention, 2011.
警告:這些引文格式不一定是100%准確.