Graves, N. (2004). Economics and Preventing Hospital-acquired Infection. Centers for Disease Control and Prevention.
Trích dẫn kiểu ChicagoGraves, Nicholas. Economics and Preventing Hospital-acquired Infection. Centers for Disease Control and Prevention, 2004.
Trích dẫn MLAGraves, Nicholas. Economics and Preventing Hospital-acquired Infection. Centers for Disease Control and Prevention, 2004.
Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.