Citace podle APA (7th ed.)

Não informado. (1929). Butler University botanical studies. Butler University, Department of Botany.

Citace podle Chicago (17th ed.)

Não informado. Butler University Botanical Studies. Indianapolis, Ind: Butler University, Department of Botany, 1929.

Citace podle MLA (8th ed.)

Não informado. Butler University Botanical Studies. Butler University, Department of Botany, 1929.

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