Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

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