TY  - BOOK
AU  - Simonetta,Alberto M.
AU  - 
ED  - The Early evolution of Metazoa and the significance of problematic taxa
TI  - The Early evolution of Metazoa and the significance of problematic taxa: proceedings of an international symposium held at the University of Camerino, 27-31 March 1989 
SN  - 0521402425 (hardback)
PY  - 1991///
CY  - Cambridge [etc.]
PB  - Cambridge University Press
ER  -