http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
edited by James R. Estes, Ronald J. Tyrl, Jere N. Brunken.
Proceedings of a symposium sponsored by the American Society of Plant Taxonomists, the Ecological Society of America, and the Botanical Society of America which was held in conjunction with the thirtieth annual meeting of the American Institute of Biological Sciences, Aug. 12-17, 1979 at Oklahoma State University in Stillwater, Oklahoma.