Swofford, David, PAUP : Phylogenetic Analysis Using Parsimony, version 3.1, March 1993 / program by David Swofford ; user's manual by David Swofford and Douglas P. Begle. - 280 pages : illustrations ; 30 cm. References : page 275-280. ISBN: Hadiah Subjects--Topical Terms: Phylogeny--Computer programs.Computer programs.