TY  - BOOK
AU  - Zangerl,Rainer
TI  - Chondrichthyes 1: paleozoic elasmobranchii 
PY  - 1981///
CY  - Stuttgart
PB  - Gustav Fischer Verlag
KW  - Elasmobranchii, Fossil
KW  - Paleontology
KW  - Paleozoic
ER  -