Suen, C. and Gillett-Kaufman, J.L. 2019. Marsh Rams-Horn, Marsh Ramshorn Helisoma (Planorbella) trivolvis (Say) (Gastropoda: Planorbidae): EENY-724/IN1234, 1/2019. EDIS. 2019, 5 (Jul. 2019), 4. DOI:https://doi.org/10.32473/edis-in1234-2019.