Citace podle APA (7th ed.)

Não informado. (1914). Contributions from the Department of Botany. Pennsylvania State College, Department of Botany.

Citace podle Chicago (17th ed.)

Não informado. Contributions from the Department of Botany. State College, Pa: Pennsylvania State College, Department of Botany, 1914.

Citace podle MLA (8th ed.)

Não informado. Contributions from the Department of Botany. Pennsylvania State College, Department of Botany, 1914.

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