Ippolito, J.A. and K.A. Barbarick. Adsorptive and desorptive properties of water treatment residuals. Ippolito, J.A., and K.A. Barbarick. Environmental management of biosolids and water treatment residuals. C.J. Caudill, J.E. Tallent Jr., K.A. Barbarick, and J.A. Ippolito.
Long term biosolids research on dryland wheat farms.
Barbarick, K.A., and J.A. Ippolito. Nitrogen fertilizer equivalency of sewage biosolids applied to winter wheat. Ippolito, J.A., and K.A. Barbarick. Modified nitric acid plant tissue digest method. K.A. Barbarick, and R.F. Redente. 1999.