Rates and amounts of runoff for the Blacklands of Texas / Ralph W. Baird and William D. Potter.Ralph Baird1950
Soil Conservation Practices and Crop Production in the Blacklands of Texas. By Ralph W. Baird and Walter G. Knisel, Jr.Ralph Baird1971
Bird World; a Bird Book for Children, by J. H. Stickney, Assisted by Ralph Hoffmann.Jenny H. Stickney Lansing1898
Regional Cost Information for Private Timberland Conversion and Management / Lucas S. Bair and Ralph J. Alig.Lucas S. Bair2006
Bird conservation implementation and integration in the AmericasInternational Partners in Flight Conference 2002 : Asilomar, California)2005