1. Invertebrate Zoology;Barnes,1980
2. Affinities and early evolution of the Crustacea: evidence from Cambrian fossils;Briggs,1983
3. DNA synthesis and development in reciprocal interordinal hybrids of a sea urchin and a sand dollar;Brookbank;Dev. Biol.,1970
4. Invertebrates;Brusca,1990
5. The Origin of Species by Means of Natural Selection or the Preservation of Favoured Races in the Struggle for Life;Darwin,1859