TY  - BOOK
AU  - Leffingwell,Ernest de Koven
TI  - The Canning River region, northern Alaska,
T2  - United States. Geological survey. Professional paper 109
AV  - QE75 .P9 no. 109.
PY  - 1919///
CY  - Washington
PB  - Govt. print. off.
KW  - Geology
KW  - Alaska
N1  - At head of title: Department of the interior; Many plates printed on both sides of leaf; "List of geographic names": p. 93-100; Bibliography: p. 242-243
ER  -