Recommended CitationHamilton, D. F., R. E. McNiel, and P. L. Carpenter. Selection, Establishment and Maintenance of Woody Ornamental Plants for Highway Plantings. Publication FHWA/IN/JHRP-72/23. Joint Highway Research Project, Indiana Department of Transportation and Purdue University, West Lafayette, Indiana, 1972. doi: 10.5703/1288284313823.
Joint Highway Research Project
Date of this Version