TY  - BOOK
AU  - Ludvigsen,Rolf
TI  - Upper Cambrian and Lower Ordovician Trilobite biostratigraphy of the Rabbitkettle Formation
T2  - Life Sciences, Contributions (ROM)
SN  - 9789004628182
AV  - QL1 
U1  - 574 s 23
PY  - 1982///
CY  - Leiden, Boston
PB  - BRILL
KW  - Trilobites
KW  - Northwest Territories
KW  - Mackenzie. 
KW  - Paleontology
KW  - Cambrian. 
KW  - Ordovician. 
N1  - Includes bibliographical references and index; Preliminary Material; Rolf Ludvigsen -- Upper Cambrian and Lower Ordovician Trilobite Biostratigraphy of the Rabbitkettle Formation, Western District of Mackenzie; Rolf Ludvigsen
UR  - http://dx.doi.org/10.1163/9789004628182
ER  -