Barber, L. B., Buxton, H. T., Furlong, E. T., Kolpin, D. W., Meyer, M. T., Thurman, E. M., & Zaugg, S. D. Response to comment on Pharmaceuticals, hormones, other organic wastewater contaminants in U.S. Streams, 1999-2000: A national reconnaissance.

Barber, Larry B., Herbert T. Buxton, Edward T. Furlong, Dana W. Kolpin, Michael T. Meyer, E. Michael Thurman, và Steven D. Zaugg. Response to Comment On Pharmaceuticals, Hormones, Other Organic Wastewater Contaminants in U.S. Streams, 1999-2000: A National Reconnaissance.

Barber, Larry B., et al. Response to Comment On Pharmaceuticals, Hormones, Other Organic Wastewater Contaminants in U.S. Streams, 1999-2000: A National Reconnaissance.