TY  - BOOK
AU  - Ball,John
AU  - Greacen,Katherine
TI  - Catalog of the Egan collection of silurian invertebrate fossils at the Chicago academy of sciences
T2  - Special publication, 7
PY  - 1946///
CY  - Chicago
PB  - The Chicago academy of sciences
KW  - Faune invertébré
KW  - Silurien
KW  - Etats Unis
ER  -