BioStor
Tropisternus affinis Motschulsky, 1859
 | A catalogue of the Coleoptera of Colorado H Wickham (1902) Bulletin from the Laboratories of Natural History of the State University of Iowa 5: 217-310 |
 | The Coleoptera of New Mexico H C Fall and T D A Cockerell (1907) Transactions of The American Entomological Society 33: 145-272 |
 | Contributions toward a knowledge of the insect fauna of Lower California. Coleoptera: Halipidae, Dytiscidae, Gyrinidae, Hydrophilidae, Limnebiidae Hugh Bosdin Leech (1948) Proceedings of the California Academy of Sciences 24: 375-484 |
 | A CHECKLIST OF THE MACRO INVERTEBRATES OF THE PROVO RIVER UTAH P V Winger, E J Peters et al. (1972) Great Basin Naturalist 32: 211-219 |