TY  - BOOK
AU  - Mirsky,Jeannette
TI  - The westward crossings: Balboa, Mackenzie, Lewis and Clark 
PY  - 1946///
CY  - New York
PB  - Alfred A. Knopf
KW  - Explorers
KW  - North America
KW  - America
KW  - Discovery and exploration
KW  - Description and travel
N1  - Includes bibliographical references and index
ER  -