Loefling, P. L. (1957). Plantae americanae. Insula.
Tohutoru Kātū Chicago (17th ed.)Loefling, Pedro Löfling. Plantae Americanae. Madrid: Insula, 1957.
Tohutoro MLA (9th ed.)Loefling, Pedro Löfling. Plantae Americanae. Insula, 1957.
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