Smith et al., 1983. Managing Natural Resource Systems Document reference Smith, E. R.; Callahan, R. L., 1983. Bottom Land Hardwoods for Wildlife and Timber. Managing Natural Resource SystemsWeb https://naldc.nal.usda.gov/download/IND84105118/PDFCitation key Smith et al., 1983Datasheets Cockspur grass (Echinochloa crus-galli) forage
