Não informado. (1997). Cancer Cytopathology. American Cancer Society.
Chicago (17e ed.) BronvermeldingNão informado. Cancer Cytopathology. Philadelphia, Pa: American Cancer Society, 1997.
MLA (8e ed.) BronvermeldingNão informado. Cancer Cytopathology. American Cancer Society, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.