TY -
BOOK
AU - Whittington, H. B.
TI -
Two silicified carboniferous trilobites from West Texas
PB - Smithsonian Institution
PY - 1954
BT - Smithsonian miscellaneous collections ; 122,10
BT - Publication / Smithsonian Institution ; 4146
CY - Washington
UR - http://slubdd.de/katalog?TN_libero_mab2
ER -