Authors: Barbash, JE Thelin, GP Kolpin, DW Gilliom, RJ

Citation: Je. Barbash et al., Major herbicides in ground water: Results from the National Water-Quality Assessment, J ENVIR Q, 30(3), 2001, pp. 831-845

Authors: Kolpin, DW Barbash, JE Gilliom, RJ

Citation: Dw. Kolpin et al., Pesticides in ground water of the United States, 1992-1996, GROUND WATE, 38(6), 2000, pp. 858-863

Authors: Squillace, PJ Pankow, JF Barbash, JE Price, CV Zogorski, JS

Citation: Pj. Squillace et al., Preserving ground water samples with hydrochloric acid does not result in the formation of chloroform, GR WATER M, 19(1), 1999, pp. 67-74

Authors: Gilliom, RJ Barbash, JE Kolpin, DW Larson, SJ

Citation: Rj. Gilliom et al., Testing water quality for pesticide pollution, ENV SCI TEC, 33(7), 1999, pp. 164A-169A