Wright, R. Gerald, editorSmith, Freeman M. (Freeman Minson), 1939-, editorNatural Resource Ecology Laboratory, Colorado State University, publisher2007-01-032007-01-031970http://hdl.handle.net/10217/15804September, 1970.born digitaltechnical reportsengCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.U.S. International Biological Program. Grassland BiomeGrassland ecologyText