Link, E., ed. 1993. Native plant propagation techniques for national parks interim guide: A cooperative program between the U.S. Department of Agriculture, Soil Conservation Service and U.S. Department of the Interior, National Park Service. East Lansing, MI: U.S Department of Agriculture, Natural Resources Conservation Service, Rose Lake Plant Materials Center.

Link, E., ed. 1993. Native plant propagation techniques for national parks interim guide: A cooperative program between the U.S. Department of Agriculture, Soil Conservation Service and U.S. Department of the Interior, National Park Service. East Lansing, MI: U.S Department of Agriculture, Natural Resources Conservation Service, Rose Lake Plant Materials Center.