Dyfyniad APA

Turgeon, R., & Medville, R. (1998). The absence of phloem loading in willow leaves. National Academy of Sciences.

Dyfyniad Arddull Chicago

Turgeon, Robert, and Richard Medville. The Absence of Phloem Loading in Willow Leaves. National Academy of Sciences, 1998.

Dyfyniad MLA

Turgeon, Robert, and Richard Medville. The Absence of Phloem Loading in Willow Leaves. National Academy of Sciences, 1998.

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