Luther Burbank, his methods and discoveries and their practical application : prepared from his original field notes covering more than 100,000 experiments made during forty years devoted to plant improvement : vol. 1 / by Luther Burbank ... [ et. al ]. Burbank, Luther, Plant breeding Research. 581 BUH New york : Luther Burbank , c1914. c1914. 1914 Text 304 p. : eng