TY - RPRT TI - Molecular size of aquatic humic substances AU - E.M. Thurman AU - R.L. Wershaw AU - Ronald L. Malcolm AU - D.J. Pinckney PY - 1982 DO - 10.1016/0146-6380(82)90005-5 UR - https://pubs.usgs.gov/publication/70011801 ID - 70011801 ER -