Christensen, J. J. (1963). Corn smut caused by Ustilago maydis. American Phytopathological Society.
Chicago (17e ed.) BronvermeldingChristensen, J. J. Corn Smut Caused by Ustilago Maydis. St. Paul: American Phytopathological Society, 1963.
MLA (8e ed.) BronvermeldingChristensen, J. J. Corn Smut Caused by Ustilago Maydis. American Phytopathological Society, 1963.
Let op: Deze citaties zijn niet altijd 100% accuraat.