Catalog of Recent Echinoid Type Specimens in the U.S. National Museum, Smithsonian Institution and the Museum of Comparative Zoology, Harvard University

Florence A. RuhoffHarold Frederick LoomisHerbert FriedmannHerman Austin ScullenMaureen E. Downey

出版	Smithsonian Institution Press, 1968
URL	http://books.google.com.hk/books?id=PNu_0AEACAAJ&hl=&source=gbs_api