Madl, M. (2018). Ferreola divisa W ALKER 1871. Zenodo.
Tohutoru Kātū Chicago (17th ed.)Madl, Michael. Ferreola Divisa W ALKER 1871. Zenodo, 2018.
Tohutoro MLA (9th ed.)Madl, Michael. Ferreola Divisa W ALKER 1871. Zenodo, 2018.
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