Knoke, J. D., & Gray, G. C. (1998). Hospitalizations for unexplained illnesses among U.S. veterans of the Persian Gulf War. Centers for Disease Control and Prevention.
Citação norma ChicagoKnoke, J D., and G C. Gray. Hospitalizations for Unexplained Illnesses Among U.S. Veterans of the Persian Gulf War. Centers for Disease Control and Prevention, 1998.
Citação norma MLAKnoke, J D., and G C. Gray. Hospitalizations for Unexplained Illnesses Among U.S. Veterans of the Persian Gulf War. Centers for Disease Control and Prevention, 1998.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.