Kirby, W. F. (1889). A revision of the subfamily Libellulinae, with descriptions of new genera and species. Zenodo.
Chicago-čujuhus (17. p.)Kirby, W. F. A Revision of the Subfamily Libellulinae, with Descriptions of New Genera and Species. Zenodo, 1889.
MLA-čujuhus (9. p.)Kirby, W. F. A Revision of the Subfamily Libellulinae, with Descriptions of New Genera and Species. Zenodo, 1889.
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