Henry, Heather. "Natural Revegetation of an Aged Petroleum Landfarm Impacted With Polycyclic Aromatic Hydrocarbons (PAHs) and Heavy Metals (Cr, Pb, Zn, Ni, Cu): Ecological Restoration, Remediation, and Risk." Doctoral dissertation, University of Cincinnati, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1100890826Chicago Manual of Style (17th edition)