@misc{indiciaeadf01432c056, title = {Formation of the Sino-U.S. Centers for Soil and Water Conservation and Environmental Protection}, author = {J. R. Gray and W. R. Osterkamp and Scott Christiansen and W. A. Sprigg}, year = {2003}, url = {https://pubs.usgs.gov/publication/70128341}, note = {Source identifier: 70128341} }