found: Engel, W.T. Field study of nutrient control in a multicell lagoon, 1980 (x-ref.)t.p. (La Plata, Md.)
found: Col. lip. gaz., 1952(La Plata, town, Charles Co., Md.)
found: GeoNames, algorithmically matched, 2009(ppl; 38°31ʹ45ʺN 076°58ʹ31ʺW)
found: Wikipedia, August 30, 2019(La Plata, Maryland; town in Charles County, Maryland; county seat of Charles County; 1888 incorporation; 38°32ʹ3ʺN 76°58ʹ24ʺW (38.534258, -76.973377))
found: Town of La Plata, Maryland website, August 30, 2019:home page (Town of La Plata, Maryland; county seat for the Charles County Government and was originally founded in the 1870's; incorporated on April 4, 1888; Town Hall, 305 Queen Anne Street, P.O. Box 2268, La Plata, Maryland 20646) - https://townoflaplata.org/
