"Citrus Propagation and Rootstocks" http://www.ultimatecitrus.com/pdf/tncitrus.htm "Citrus Propagation and Rootstocks" "Citrus Propagation and Rootstocks" Citrus Propagation by Ultimate Citrus Citrus Propagation by Ultimate Citrus "Citrus Propagation and Rootstocks" Citrus Propagation by Ultimate Citrus "Citrus Propagation and Rootstocks"