Goldberg, Aaron Character variation in angiosperm families / by Aaron Goldberg - Washington, DC : National Museum of Natural History, 2003 - 185 p. : ill. ; 26 cm. - Smithsonian Institution. Contributions from the United States National Herbarium ; v. 47 . Includes bibliographical references (p. 149-156) ISBN: Hadiah Subjects--Topical Terms: AngiospermsDicotyledons