| Citation | Williamson, E.B. 1933 The status of Sympetrum assimilatum (Uhler) and Sympetrum decisum (Hagen) (Odonata - Libellulinae). Occas. Pap. Mus. Zool. Univ. Michigan (264):1-10. |
| DOI / ISBN | |
| Paper URL | |
| Ref. No. | 92169 |
| Language | English |
| Usage | used in part |
| Comments on the publication | |
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