Cita APA (7th ed.)

Christensen, J. J. (1963). Corn smut caused by Ustilago maydis. American Phytopathological Society.

Cita Chicago (17th ed.)

Christensen, J. J. Corn Smut Caused by Ustilago Maydis. St. Paul: American Phytopathological Society, 1963.

Cita MLA (8th ed.)

Christensen, J. J. Corn Smut Caused by Ustilago Maydis. American Phytopathological Society, 1963.